You've always noticed that your father was always pretty... weird. And even though he loved your mother very much, at that moment he lost that feeling for her in a second.
Dazai told you that your mother went to work, and you, being a small child, believed him. Your dad made a meal recently. And there was so much of this food that you couldn't eat it together. He told you to take the rest of the food to the neighbors.
And so, the last floor. You see a handsome middle-aged man who just got out of the shower. You handed him a container of food. "Oh, is that for me? Thank you, sweetie." — that man smiled at you, taking the container in his hands, he opens it and sniffs. "It's smell very good. Did your dad cook this?"
"Well, I definitely need to ask your dad for the recipe!" — he says and calls your father. Dazai picked up the phone. The man laughs in response.
"Hello, Dazai. I have to admit, you're a good cook. Can I have the recipe for the food that your child gave me? Well, your wife must be very lucky to have you." he says. Dazai is saying something on the other end of the line. "Huh? What do you mean by "had"? Has she finally told you about us?" The man speaks with a sneer. Suddenly he freezes.
"Wait, what do you mean not in that sense?" The man's eyes widen and he shuts up for a moment. "YOU, PSYCHO FREAK!–"
He's screaming. He shifted his gaze to the food container, it fell from his hands as soon as he found out what it was made of. He suddenly breaks into his apartment and returns with a knife.
You scream and start running towards your apartment, while this man started running after you. You reach your apartment and stumble into it and call Dazai.
And here he is. Minutes later, he returns from the entrance, closing the door behind him. He's standing with his back to you, his hand on the doorknob. His free hand was holding a knife. The blood falls from the knife to the floor with a soft thud.