Miyako is at home in Oshi No Ko Season 3 episode 1. She talks with someone about Ruby over the phone. She claims that she will wait for his proposal. She hangs up. Mem-Cho studies Ruby in her room. She thinks Ruby is very special. Akane completes the filming on the set. She takes over the flowers from someone. She thanks the crew. Her movie is going to be released. Her dramas are going to be filmed. She shows on the screen with powerhouse actress.
Aquamarine joins a variety show. He plays a supporting role in a drama. He becomes a model of a fashion magazine. He’s going to be a versatile artist.
Mem-Cho meets Kana and Ruby at Mem-Cho’s house. She learns that the two girls had a meeting when they were child stars. Ruby reveals she and Kana knew each other on the set. She thinks she and Kana are childhood friends. But Kana denies it. She complains that Ruby was rude when she was a kid. Ruby mentions Kana licked baking soda. Kana yells. She claims that she was the genius child star who cried within ten seconds. She asks Ruby not to call her baking soda girl. She reveals she was asked about the original name of baking soda girl. Mem-Cho and Ruby laugh. Mem-Cho announces that the filming has wrapped.
Miyako informs the girls that they need to film “Try Dancing” tomorrow. Mem-Cho brings up that they need to go to Hokkaido for the Live show. She thinks they’re very busy. She hugs Miyako. She complains it to her that she’s very tired. She asks Ruby and Kana about their plans. She offers to have a meal together. Kana rejects it. She and Ruby leave the house. Mem-Cho notices that Kana and Ruby are changed.
Kana walks on the street. She sees Akane on the big screen. She remembers Aquamarine told her that he wants to date Akane. Akane lies in the bed at home. She talks with Aquamarine over the phone. She complains it to him that the sound engineer shouted loudly. He wonders when she will be free. She only has two days free this month. He learns that she’s very busy. She thinks she’s very busy because she starred the dramas. They want to see each other.
Three guys talk about the girl group at the idol store after they watched the concert of the girl group. They believe that there will be a new member appearing. Miyako, Kana, Ruby and Mem-Cho are in the car. They’re on the way somewhere. Mem-Cho brings up that Aquamarine wasn’t there. Miyako reveals Aquamarine had a filming. Kana gets Miyako to drop her.
Kana sits alone by the roadside. She misses Aquamarine. Mem-Cho shows up. Kana learns that the girl followed her. She knows the place is far away from Mem-Cho’s home. Mem-Cho sits with Kana. She admits it. She knows Kana won’t like it that she pretends to know her feelings. She figures it out that she does it because of Aquamarine. She understands that she’s very sad. Kana cries. She complains it to her friend that the guy hid in the restroom when she got into the company. He didn’t come to watch their concert. Mem-Cho comforts Kana that Aquamarine was very busy. Kana doesn’t think so. She yells at Mem-Cho. She believes that Aquamarine intended to avoid her. She mentions he’s dating Akane. So he wouldn’t be close to other girls. She thinks he was loyal. She guesses he’s a good man in his girlfriend’s eyes. Kana knows Akane is very talented and she’s pretty. She’s very gentle. So Kana supports Akana and Aquamarine’s love relationship. She didn’t plan to bother Aquamarine. She thinks he shouldn’t avoid her. Because she will be hurt.
Kana falls asleep in her bedroom. Mem-Cho leaves the bedroom after she made sure that Kana is fine. She runs into Aquamarine at the elevator. He thinks it’s no coincidence. He expresses that he’s very tired after he worked. He doesn’t want to talk with her. He offers to do it another day. She wonders if the day is one month later. She mentions they’re very busy. She doesn’t know when they’re free at the same time. He gets her point. He offers to do it on a sofa place.
Mem-Cho takes Aquamarine home. He reveals LALALAI invited him to star a stage play. He needs to go to rehearse because of it. He needs to study after he returns home. She brings up that he’s good at studying. She guesses he wants to go to college. He admits it. He thinks he won’t get into medical school if he doesn’t prepare. She’s surprised that he wants to be a doctor. She thinks he should do that. She brings up that she wanted to study in a college. He persuades her that it’s not late if she prepares. But she thinks he’s too naive. She says that she wouldn’t get into the entertainment industry if she’s a good girl. She knows going to a college will be good to her future. But everyone didn’t do that because they’re very busy. She brings up that human cannot make reasonable judgement. She thinks he’s the same. She mentions he didn’t get along with Kana. He realizes that she wants to talk about it with him. He persuades her not to step in the case. She thinks what he said is right. But she’s not a reasonable girl. She wants to do something after she saw her friend crying. She reveals Kana’s performance level declined. She begs Aquamarine to come up with a way. She thinks he should reassure Kana after he hit on the girl.
Mem-Cho thinks Aquamarine didn’t know how to strike the right balance. She reminds him that what he did to Kana is ambiguous. She thinks he should only have done it to the girl he loves. He makes her lie on the sofa. He mentions she took a man home without knowing the risk. He thinks she shouldn’t have scolded him. He asks her not to treat him as a kid. He knows Kana will be sad after he avoided her. He claims that he knew it will happen. He reveals he didn’t intend to do it to Kana. He thought about the futures of him and Kana. He knows the girl will be famous. He mentions fans will be mad after their idol has a boyfriend. He wonders who will take the duty if Kana is hurt. He cries. Mem-Cho realizes that Aquamarine has feelings for Kana. She wipes off the tears of the boy. She gives him a hug. He reminds her that she’s flirting with him. She points out that human cannot be so rational.
Frill sits with Ruby on the bench outside. Frill is watching Aquamarine’s show with her cell phone. She tells Ruby that her brother did a good job. She falls for the boy. She points out that Aquamarine knew how to hurt people at the right time. Minami reminds Ruby that Frill became a fan of her brother. Ruby goes against it. She tells Frill that her brother has a pretty girlfriend. Frill comforts Ruby that she won’t hit on Aquamarine. She just appreciates the guy’s style. She thinks she cannot enjoy the show if she’s close to him. She thinks it’s very important that a fan should keep a distance from the idol. She believes that she will work with him somewhere if he works hard. Minami laughs. She thinks it will happen. Frill tells Minami that what she means is that she and Ruby will work with her except Aquamarine. Minami doesn’t believe that she has the talent. Frill expects it. Minami reminds Ruby that she might appear on a show with her brother.
Ruby becomes a reporter of the variety show. Aquamarine feels really awkward. Because he’s on the show as well. The guests praise Ruby. They think the girl is cute. Aquamarine finds Kaburagi. He blames him for playing with him. Kaburagi reveals he didn’t intend to start Aquamarine. He thinks Aquamarine had a good reaction. He mentions he showed his real side. He thinks the viewers will like him more. He mentions Ruby’s idea was very good. Aquamarine is surprised that Kaburagi didn’t arrange it. Kaburagi reveals Ruby volunteered to give the proposal. The girl believed that the show will be funny if she does it. Kaburagi thinks Ruby is outstanding since she did it. He chose her because her idea was great. He mentions he didn’t think she will do such a thing when he saw her. He figures it out that there’s a strategist joined Strawberry Entertainment. Ruby finds the strategist by the lake. She wonders if he caught a fish.