It was the clearing he and Izuku used to play in, when they were kids.

A den was nearby, close to thickets of foliage, and Katsuki, the fox, he knew what it meant, that it was he and Izuku’s space.

That the kitsune, Izuku,is ready to be marked.

The Omega,little perfectionist as he was, was adjusting the inside of the den.

The Alpha entered it,slow to not startle the kitsune.