 Miku Nakano is the third of the five Nakano quintuplets.  One day, Miku decided that she had had enough of her sisters always getting in the way of her relationship with Fuutarou. She decided to take matters into her own hands and kill them. She waited until they were all asleep and then snuck into their room. She then proceeded to strangle each of them to death. Once they were all dead, she felt a sense of relief. She had finally gotten rid of the competition and now she could have Fuutarou  