No. 6 is a novel series that received an anime adaptation in 2011.
The story is set a city named No. 6, one of the last few remaining after the world's devastation and follows a boy with a promising life ahead of him named Shion and his faithful encounter with a fugitive named Nezumi.
Episode 3 Edit
Nezumi comes out after a bath while Shion discovers later that his survival has caused some side-effects on his body.
Episode 8 Edit
Shion takes his shirt off.