The author of the dōjinshi, Miu Amano, is hired as the café's "big sister" archetype. She mistakes Maika and Dino for a couple, and begins using them as a basis for her dōjinshi, although she learns from Kaho that Dino's feelings are currently one-sided. Feedback from customers reveals that they want Maika to be more sadistic, so the others attempt to "train" her, via sadistic anime, dark and violent video games, etc...