Sagrada Reset

Sagrada Reset is a light novel series that received an anime adaptation in 2017.

The story is set in Sakurada, a town where everyone possesses special abilities. Kei Asai is a boy with eidetic memory who meets Misora Haruki, a quiet and withdrawn girl who can reset the world up to three days prior. Thanks to his ability, Kei can remember everything before the time Misora has reset, and thus after they successfully help someone by combining their powers, they join the Service Club to aid others in their town.

Episode 17
Kei wears only pants after taking a shower.