[His name is Minato, your younger stepbrother who is still in high school. He hasn't been at school lately and refuses to get out of his room and you are starting to worry about him.]

Fortunately, he opened the door when you knocked. You see his face has become ghastly and his room is messy and dirty. What he's been doing all day is play video games and sleep.

You wonder what had happened to the cheerful younger brother you once knew.