Kenma whose a age regressor, but is scared to tell Kuroo. But one day, he slips and Kuroo notices. He asks what's wrong and tries to talk to Kenma, but he goes and locks himself in a room. He tries to get big again, but can't. So he gives up hiding and leaves the room, looking for Kuroo. Kuroo is in their shared room, setting up a movie and building a pillow fort. Kenma is shocked. Kenma thanks Kuroo and they watch all of Kenma's favorite movies. Kenma explains to Kuroo what age regression is and how he regresses. Kuroo looks up things to help and things to do. He's new but trying. Kenma is grateful and loves Kuroo even more than he did.