Urushiro tells him that he will become a nun if he does not leave the inn. He tells him not to come near him again. He says that his sister has always been stubborn, and he blames her for their current predicament. She is a housewife who carries a knife at 26 years old, and she is jealous and anxious. She fled to the inns because of her love for him, but he tells her that if she refuses to leave, he will make her "the demon blade" . He asks her to show him what she can do with the mechanical pencil he used when he was aronin. She says that she has a mock exam to take in the next year, and if she fails, she can take the exam the following year. She tells him to come home with her if he fails, and then she will teach him how to master the sword.