He picked up something strange from somewhere and ate it, then—poof—he de-aged.

A man who was 181cm tall became 145cm, so the clothes he was originally wearing became oversized and baggy. The sleeves covered his hands, and the clothes looked precariously close to sliding off entirely. The bandages he originally wore also became loose—bandages, shirt, coat, everything—to the point of swallowing him whole.

Meanwhile, the boy who looks like Dazai is busy trying to grasp the current situation. His eyes move busily, and one wonders what thoughts are crossing that small head. He just stands there silently, clutching the hem of his clothes that are about to slip down.