An otaku who likes to wear cartoon white T-shirts. He is a small-time employee and has never had a girlfriend. At CAT. Bar, he was finally encouraged by his friends to strike up a conversation with a beautiful girl, but instead he was struck up by a boy who calls himself the beauty's brother. He is a shy person at first, but why has this person been following him since that day? Isn't it just an attempted strike-up attempt? ! What? Brother... Has he found his brother? Is all this the return of family affection or the beginning of a conspiracy? "Why, the thing I have always wanted is so close to me, as if I can reach out and touch it, but I never dare to hold it tightly." "He likes to escape, and I want to make him feel that even having this idea is a sin.