Girls Planet 999 Wiki
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# Title Air Date
1 Phase 1, Yeo Jin Goo Navigates! The Girls’ First Stage Stun the Audience August 6, 2021
The episode opens with all 99 girls being divided into cells, each consisting of a Korean, Chinese, and Japanese contestant. Groupings are based on a variety of characteristics common to the girls, such as type of career and personal interests. Upon the girls entering the main stage and taking their seats, the host of the competition, Yeo Jin Goo, is introduced to the girls. He is then followed by the rest of the mentors. Yeo then explains the rules of the competition, revealing that a cell of girls can all be eliminated at once; he also explains that if a girl lands a spot in the "Planet Top 9", they will be given the option to rearrange cells.


Each girl is evaluated to determine whether they should be considered to become a Planet Top 9 candidate and their initial ranking is revealed prior to each performance based on the theme song evaluation test. The episode ends with K-Group contestant Choi Yu Jin about to perform. During the credits, it is revealed that the Planet Top 9 evaluations will continue and the first mission will be introduced in the following episode.

2 The Stage Continues in Episode 2! The First Mission Surprises the Girls August 13, 2021
The Planet Top 9 evaluations continue, and the eventual Planet Top 9 for the episode are announced, with J-group contestant Ezaki Hikaru taking first place. The girls then rearrange or keep their cells, followed by the announcement of voting being open on UNIVERSE.


Following the announcement, the girls move into the dorms. The next day, the girls' first-morning mission begins where they have to connect their cell with their childhood photos. Whoever gets their cell's childhood photos correctly from first to tenth will form a team and pick a song for the first mission. The actual first mission called the Connect Mission is then revealed where cells will form teams and battle through one song. The girls then form teams and begin to prepare for the performance.
If the team chooses one of the four mission songs (BLACKPINK- How You Like That, IZ*ONE - FIESTA, TWICE - YES or YES, Oh My Girl - The fifth season (SSFWL)), the winning team's voting count will be doubled 24 hours before closing. However, if the team chooses EBS (EXO - The Eve, BTS - MIC DROP, and Seventeen - Pretty U), the winning team's voting count will be tripled 24 hours before closing. The best out of the five winning performances will get a chance to perform on M Countdown after the mission.

3 Episode 3, Connect Mission, the strength of the "Avenger" is questioned? August 20, 2021
The current cell rankings are displayed at the beginning of the episode. The contestants begin preparing for their first mission by determining their positions in the performance.
Several days before the team performances, a dance battle is held to determine the order in which the teams will perform. Following the dance competition, the teams continue to practice, with the mentors offering feedback on how to improve.
The group performances then begin. The "YES or YES" Team 1 wins, followed by the "How You Like That" Team 1. Towards the end, "The Eve" team is preparing to perform.
4 Episode 4, the girls stage a big counterattack in the task! August 27, 2021
The group performances continue. The "FIESTA" Team 1 wins, followed by "The fifth season" Team 1. The boy group song performances are then shown, with the

"Pretty U" team securing the most points out of the three and winning.
After the completion of the performances, the winning team that will get to perform on M Countdown is revealed to be "YES or YES" Team 1.

During the end credits, it is revealed that only 54 contestants will survive in the following episode, meaning that 45 contestants will be eliminated.

5 Episode 5: The TOP9 of the first round! 45 unfortunate girls have to leave the stage September 3, 2021
The first ranking announcement begins. The top 16 cells are first announced, with the cell of Choi Yu Jin, Cai Bing and May clinching first place with 2,929,629 points.
During occasional breaks in between announcements, other activities that the girls did together leading up to the day of the announcement were shown.
For the last surviving cell, it was between the cell of Yoon Ji A, Zhou Xin Yu and Shima Moka against the cell of Kim Se In, Wen Zhe and Okazaki Momoko. The former cell secures the surviving cell spot and remains in the competition.
Then, the results of the Planet Pass is announced; the Planet Pass is a vote between the mentors in which one eliminated contestant from each of the 3 racial groups will be saved to remain in the competition. K-Group's Kim Hye Rim, C-Group's Wen Zhe and J-Group's Ikema Ruan are announced to be receiving the Planet Pass, allowing them to remain in the competition.
Following this, the new Planet Top 9 are then announced, with J-Group contestant Kawaguchi Yurina obtaining first place with 4,446,387 points.
Following the ranking announcement, the eliminated girls bid their farewell to the surviving contestants and leave their dormitories.
During the preview of the next episode, it is revealed that the next mission dubbed as the "Combination Mission" will begin in the following episode.
6 Episode 6: Combination Mission! Who will win the reward? September 10, 2021
The episode begins with the 54 girls entering a room. Host Yeo Jin Goo then enters the room, explaining that the next mission would be the Combination Mission.

Yeo also reveals that Cells will be disbanded and cell votes will be phased out, meaning that rankings are all now individual.

He then moves on to explain the Combination Mission, stating that the 54 girls will be split into either 3-member, 6-member or 9-member teams for the mission. There are a total of 6 songs for 3-member teams, 3 songs for 6-member teams and 2 songs for 9-member teams.

To determine their teams, the girls enter doors labeled "3", "6" and "9" which will lead to respective 3-member, 6-member and 9-member team songs where they will have to pick which song they want to perform.

After forming their teams, the girls then proceed to prepare for their group performances. The girls are first evaluated by the mentors through an interim check before the actual performance.

The performances begin, with the team of Kim Bo Ra, Nagai Manami and Wen Zhe performing rap song "We Are" by Woo Won-jae first.

The episode ends with the team of Kang Ye Seo, May, Shen Xiao Ting, Su Rui Qi, Yamauchi Moana and Choi Yu Jin about to perform "Fate" by Lee Sun-hee.

The four songs created for the next mission, dubbed as the "Creation Mission" is also revealed. Viewers were told to vote who they wanted to perform which song through Universe.

7 Combination Mission! Who will win the 270,000 points? September 17, 2021
The Combination Mission group performances continue. After all of the performances finish performing, the winners of the Combination Mission are announced.

For the 3-person teams, the team of Huh Ji Won, Fu Ya Ning and Sakamoto Mashiro wins, securing 90,000 points each.

For the 6-person teams, the team of Kang Ye Seo, May, Shen Xiao Ting, Su Rui Qi, Yamauchi Moana and Choi Yu Jin wins, securing 45,000 points each.

For the 9-person teams, the team of Cai Bing, Zhang Luo Fei, Chia Yi, Yoon Ji A, Kim Hye Rim, Arai Risako, Kim Do Ah, Hayase Hana and Shima Moka wins, securing 30,000 points each. During the previews for the next episode, the girls are introduced to the Creation Mission songs which were previously shown to the audience in the previous episode. 27 girls will be eliminated next episode. The planet pass will still be implemented next elimination.

8 Episode 8, The Survival Announcement. Top 9 will be shuffled? September 24, 2021
The episode begins with the 54 girls being split into four different groups for the four Creation Mission songs, having been arranged through the voting of viewers. In each song, the girls are split into two proxy teams, resulting in two contestants being assigned as the killing parts of the song for their respective team. The girls begin trying out for the various positions in the song.

In the midst of preparing, the second elimination round results are announced to the girls. The top 7 contestants in each group was announced, followed by the 8th-ranking contestant of each group.

Following this, the new Planet Top 9 is announced. C-Group contestant Shen Xiao Ting achieves first place with 5,517,873 points.

Once the Top 9 had been announced, the Planet Pass recipients were announced. They were announced to be K-Group's Kim Su Yeon, C-Group's Zhou Xin Yu, and J-Group's Kamimoto Kotone.

At the end of the episode, it is also revealed that Xu Zi Yin, who placed 8th in C-Group, had left the show due to health issues.

9 Creation Mission! A new challenge for the 27 girls October 1, 2021
The Creation Mission continues with the 26 girls rearranging parts and changing lineups for their Creation Mission songs. The "Shoot!" team became the only team without any lineup changes nor part rearrangements since half of the original members were eliminated in the previous episode and had their same parts as the remaining ones. After changing lineups and rearranging parts for their Creation Mission songs, all teams continue practicing until when they leave their dorms for a special mission called the Planet Teamwork Mission.

In the Planet Teamwork Mission, all teams must perform their Creation Mission songs no matter where they go using teamwork.

The "Shoot!" team goes to Kim Da Yeon's apartment, where they meet Kim Da Yeon's mom and write letters to Kim Da Yeon in her bedroom. They later perform their song in front of Kim Da Yeon's mom and eat sushi for lunch at Kim Da Yeon’s dad’s sushi restaurant.

The "Snake" team goes to a rural town, where they harvest sweet potatoes and chili peppers for lunch and meet the "Shoot!" team in a video call. They later perform their song in front of the town's residents at the town hall along with two trot songs.

The "U+Me=LOVE" team goes to Lotte World Tower, where they receive a massage and eat dinner at a luxurious restaurant in the tower. They later meet the "Snake" team in a video call while eating dinner and perform their song in the 118th floor.

The "Utopia" team hikes and paraglides, but two of its members were left behind due to the direction of the wind that made the paraglides hard to fly. The other three members meet the two members who couldn't fly by the direction of the wind and reunite as a team.

All teams return to their dorms in the night and sleep in their bedrooms.

6 days after the Planet Teamwork Mission, all teams start rehearsing for their songs, but the rehearsal was interrupted when the second interim results were announced to the girls. The top 18 contestants were announced in ascending order, followed by the interim Planet Top 9. C-Group contestant Shen Xiao Ting remains in first place while the original centers of the show's theme song returned to first place in their respective groups.

After the second interim results, a scene from a month earlier showed 54 girls from the -Combination Mission return for field day. On field day, the 54 girls from each group form a team and compete in a series of games. The winning team receives fleece jackets while the runner-up team receives cosmetics sets. J-Group won with a total of 720 points, followed by C-Group with 450 points and K-Group with 300 points. The episode ends with K-Group receiving towels as a prize for finishing 3rd.

10 Creation Mission! Top-tier stages are ready October 8, 2021
The episode begins with the girls attending a fan meeting with some viewers of the show. They perform several of their past performances from the Planet Demo Stage and the previous two missions. After the fan meeting, the girls give presents to the audience.

The episode then begins to the commencement of the Creation Mission performances. The "Shoot!" team performs first, followed by the "Utopia" team. The "U+Me=LOVE" team then performs, followed by the "Snake" team. After the performances, the winner is announced to be the "U+Me=LOVE" team, scoring 94.17 out of 100 points.

Then, it is revealed that the real final mission is named the O.O.O Mission which will take place during the finale episode. Further details are revealed; the girls will be first organized into 3 different groups that will perform a debut group version of the show's theme song, "O.O.O (Over&Over&Over)". The teams were voted for by the viewers through UNIVERSE.

11 Survival Announcement! The battle for qualifying in the finals? October 15, 2021
The episode begins with the O.O.O Mission. The girls are grouped into three different teams; two containing nine members and third containing eight. The girls arrange their parts and practice their performance. After practice, they perform their performances to the mentors. In between performances, the girls are shown video messages and performances by viewers of the show from around the world.

The winners of the O.O.O Mission were determined by the viewers of the show; the contestant of each team that accumulated the most number of YouTube likes on their respective video within 24 hours would obtain a benefit of 90,000 (nine-member) or 80,000 points (eight-member). The winners of the O.O.O mission were Choi Yu Jin (Team 1) & Huening Bahiyyih (Team 2) each obtaining the 90,000 points and Seo Young Eun (Team 3) obtaining 80,000 points.

The episode then proceeds to the third ranking elimination. C-Group contestant Shen Xiao Ting maintains her first place ranking with 4,161,699 points. After the seventeen survivors are announced, the Planet Pass recipient is then revealed to be K-Group contestant Guinn Myah.

The episode ends with the preview of the final episode's mission called the Completion Mission.

12 October 22, 2021
The episode begins with the 18 finalists performing the show's theme song. Due to COVID-19 safety measures, the only live audience was the mentors along with some of the eliminated contestants who were still in Korea at the time. There was also a live Zoom audience who was occasionally shown.

After the theme song performance, the show's host, Yeo Jin-goo, announces the opening of the final voting round, in which all live votes will be doubled. Following this, the audition and highlights videos of the 18 girls are shown. Voiceovers by the girls during the videos also explain why they are pursuing such a career, expressing their desire to debut. Yeo then explains the live voting process, stating that the final votes will include the first round votes from the week added with the final second round live votes. He also revealed that 4,300,524 votes had been cast in the first round from 172 countries. A segment then takes place where Yeo interacts with members from the live Zoom audience. He then introduces the mentors as well as the live audience consisting of some eliminated contestants. The current 9th place candidates are then announced, revealing them to be C-Group's Shen Xiaoting and J-Group's Hikaru Ezaki.

The episode then cuts to a few weeks before the finale; the 18 girls are introduced to the Completion Mission song "Shine". They learn that two teams of nine will be formed, with both teams performing the same song. The lowest ranking contestant, K-Group's Guinn Myah, goes first to pick which team they want to join, followed by the rest of the contestants in ascending rank order. The girls then settle their parts and prepare for the finale. Yeo then announces the debuting girl group's name, revealing to be Kep1er, pronounced as Kepler. Afterwards, the 18 girls then perform "Shine".

After the performance, the episode cuts to a week prior where the girls watch their audition videos. They also watch videos aimed to their future selves that they filmed when the show began, as well as similar videos filmed by some of the eliminated contestants. The girls then perform "Another Dream", a pop ballad song. Afterwards, Yeo interacts with another member of the live Zoom audience, as well as eliminated K-Group contestant Choi Yeyoung.

The episode then cuts to the days leading up to the finale. The girls are treated to a party where they reviewed artworks they created for one another as well as receive a lavish dinner. Afterwards, they also view polaroids that serve as memories of their time participating in the show. They then settle in front of a projector and watch video messages by some of their parents.

Yeo then begins to announce the debut lineup of Kep1er. J-Group's Mashiro Sakamoto places 8th, followed by J-Group's Hikaru Ezaki in 7th. K-Group's Kang Yeseo, Seo Youngeun, Kim Dayeon, Choi Yujin, Huening Bahiyyih and Kim Chaehyun place subsequently in ascending rank order. For the 9th place candidates, they are announced to be C-Group's Shen Xiaoting and K-Group's Kim Suyeon and Guinn Myah. Guinn Myah is announced to be 11th. Then, the final 9th ranker and last contestant to enter Kep1er is announced to be C-Group's Shen Xiaoting, scoring around 50,000 more points than Kim Suyeon.

The episode comes to a close with the debuting and eliminated girls coming together, congratulating each other and exchanging hugs.


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