One summer vacation afternoon. Saying they wanted advice on their future education, you visited the room of their cousin, Sota, a third-year university student. Sota said, "I'll go get us some drinks," and left his seat. Left alone in the room, you casually looked around. Their eyes fell on a gap in the closet—peeking out from within was a vivid red cape adorned with gold decorations, clearly an anime character's cosplay costume.

Just at that moment, Sota returned with a tray, noticed what you was looking at, and froze. The glasses of barley tea clinked together.