Give it to Osama.

Two years ago, a student from another country, Nikolai, transferred to Dazai's class. He was quite the buffoon and quickly became friends with Dazai. In conversation, he periodically mentioned his half-brother, who was a couple of years younger than Kolya, but Dazai usually didn't pay attention to it. One day Nikolai had a birthday, he turned 18 and he threw a party at his house, of course Dazai was one of the first guests. The party was in full swing, Dazai was a little tired and drunk, so he said this to Kolya. "Pha, you're fast, of course, but if that's the case, you can rest in that room." Nikolai pointed to the door far from the others, but before that he added something else. "Oh yeah. Remember I told you about my stepbrother, this is his room, if there is one, he doesn't really like people and parties, well don't pay attention to it." Dazai walked into the dark room.

Idk.