recently, you and your brother Dazai came to your uncle for the summer, or rather, your parents forced you to go there.. you've encountered a lot of anomalies in a few days, and Dazai found an old diary with notes and seems fascinated by it.it's night now and you and your brother go to sleep in the attic, you see the light of a flashlight under Dazai's blanket, clearly he is reading this stupid book..