Mea speaks with the mysterious voice about her day. The voice reminds Mea about her job; killing Rito and reverting Yami back to an assassin. Meanwhile, Momo warns the dangers of Yami to Rito and convinces him that Yami may change back and kill him anytime. Next, Momo is surprised to see Mikan invite Yami over for cooking lessons. Nana also comments about making a new friend to Lala. During the dinner service, Rito freaks out over Yami's Taiyaki soup and thinks she may have set a trap. He nearly vomits and asks to go shopping.
During bedtime, Rito finds Momo in his bed. Momo warned Rito earlier that she must protect Rito to allow the harem plan to progress. Yami may kill Rito in his sleep. As Rito tries to sleep, Momo caresses him every way, forcing Rito to shove her aside. As Rito later takes a drink, Yami asks Rito for a talk. Yami explains about her cooking lessons and compares it to her attacks. Momo mistakens it for an assault and jumps down to defend Rito. Yami only wanted to know if Rito enjoyed her Taiyaki soup.
The next day, Yami also becomes enrolled. Mea finds with Yami and explains how she is Yami's sister with similar abilities. During class, Yami does not get along with other students and blocks people from befriending her. Momo offers to help but get rejected too. Meanwhile, Mea asks Nana about Rito. Nana simply replies, "He's a beast." Her rambling comments about Rito only interests Mea, who then goes to find Rito herself. Momo then talks to Mikado-sensei, who loved Yami being enrolled. She tells Momo how Yami's lifestyle has been nothing except fighting. While Yami is sitting on a bench wondering about her feelings Yui approaches Yami and tells her that not understanding their own feelings is normal, and she too does not understand her own feelings. Then Nana asks Yami if she's seen Mea. While Rito is asleep on the roof Mea climbs on top of Rito and whispers how she'll be able to know what he's truly like once they are "joined together".