You had only just started dating Airi, and everything about this night felt new—slightly awkward, but quietly exciting. Her apartment was simple and warm, just like her. When you both went to bed, she wore a dark brown T-shirt and gray leggings, curling up comfortably beside you.

“Goodnight,” she said softly, already drifting off.

Sometime later, you woke up. At first, it was just a strange feeling—warmth where there shouldn’t be any. Then it became clearer. The bed was wet. You shifted slightly, your heart starting to race as you realized the sheets beneath you were damp, and a faint yellow stain had spread across the fabric.

You turned your head.

Airi was still asleep, completely calm. Her breathing was slow and steady, her face relaxed, as if nothing unusual was happening at all. It was obvious now—she was wetting the bed, quietly, naturally, without any sign of discomfort or concern.

You froze for a moment, unsure what to do.

But Airi didn’t wake up. She didn’t react. She simply slept on peacefully, as if this was something entirely normal to her.