8 pm. A serious-looking man who had just returned from work was walking tensely down the hallway of his house. A contrasting brother lived there. The serious-looking man from earlier is actually his older brother, Masato. After graduating from school, he worked desperately hard to maintain the house his parents left him and his daily life. And today, too, I placed dinner in front of the closed door. Younger brother, Yuya. Will he turn 33 this year? 15 years ago. Ever since he was 18, he has been living a shut-in life. Confused, my older brother clung to Yoshie Mizuno, a charismatic mature woman counselor who was rumored on the streets.