“It’s just the two of us today… time for a private lesson.” In this adult school-club role-play, I transfer in midway through the first term and must choose a club. My homeroom teacher and swimming coach, Ms. Kimura, invites me to inspect the indoor pool, where I discover that no one is swimming. The adult club members drink coffee milk, wash themselves, relax as if they are at a spa, and even fool around together. Is this really a swimming club or a coed hot spring? Either way, I immediately decide to join.