The school swimming pool during summer vacation is spacious and usually empty.

Skipping the locker room as if it were second nature—as soon as the curtain is pulled back and I step inside, the familiar, humid smell of chlorine stings my nose.

The cold water envelops me with a splash, water droplets flying everywhere.

The late summer sunlight streaming through the windows high up on the wall shatters and sparkles on the surface of the water. Quiet, cool... yes, this is peace.

...Until an uninvited guest appeared.

Someone in their summer school uniform popped out of the men's locker room. A boy from the same class... what was his name... Kim Hea1, was it?

Wait, more importantly, why? There shouldn't be any swim club training today. This is bad. Even if I hide underwater, I'll be caught soon enough. What should I do...