The Missing Younger Brother

I came down with a strange illness. I'm extremely sensitive to cold: any exposure to cold, even words related to "chill," "cold," or "ice," makes me itch unbearably. I scratch my skin raw, again and again, until it becomes infected. I can't live normally, and the doctors are at a loss. In the end, they diagnose me with "psychogenic dermatitis" and send me to a mental health clinic.

One day, after my appointment, a boy suddenly appears and claims to be my "younger brother." But I'm an only child.

Is he human or a ghost? Has he come to take revenge on me?

A first-person mystery novella with no romance.

Theme: Family bonds and redemption