Mugi attends her first meeting with the Drama Research Society and finds out there are only five members including herself. During this meeting, she finds out that she will inevitably have to act in an upcoming play that the club will put on, something that Mugi is unsure she can handle. The following day, the Drama Research Society are practicing on the roof of the school, and Chitose Kanna from the Drama Club comes to help them.

The Drama Research Society's first public performance is coming up, and Mugi is nearly petrified to appear on stage. Nono manages to get Mugi out of a bathroom stall she had locked herself in, and then the club starts to hand out fliers to promote the event. During dress rehearsal, Chitose bursts into the auditorium and asks if Nono really is suffering from a latent form of vocal cord paralysis, and this is confirmed by Nono herself. During the play, Nono calms down Mugi enough for her to go on stage and she manages to get through her lines well enough.

As October winds by, the Drama Research Society continues to practice. Mugi has more confidence now and is able to speak with a louder voice during practice, which makes Chitose want to work even harder so as not to lose to her. Later, Risaki steals the blackout curtain from the Drama Club, and Nono goes to return it in the storeroom in a part of the school where most students do not go because it is out of the way. When Mirei goes to the storeroom to look for it, she finds Nono already there, but as they attempt to leave, they find the door is stuck, leaving them in a dire situation until someone comes around to find them.

Mugi and the rest of the Drama Research Society manage to finish the play and end up getting an ovation of applause from the audience. Afterwards, the members of the audience vote for best performance, and the balls are counting in front of a crowd. In the end, the Drama Club wins, which means the Drama Research Society must now disband. The Society have one last meeting together where they recount how they came to be members of the club, and Mugi especially is very thankful to have joined.

Kayo is going to leave soon, and Mugi starts to avoid her friends due to the pain of losing such a close friend. Chitose and Kai try to help her confront her feelings through talking with her, but eventually resort to getting her to come to the theater so that she can tell Kayo how she feels.