So, I Can't Play H!

So, I Can't Play H! is a light novel series that received an anime adaptation which aired in 2012.

The story follows Ryosuke Kaga, a lecherous high school student who makes a contract with Lisara Restall, a beautiful Shinigami. After informing him that he has only three months left to live, Lisara converts his lecherous spirit into energy that enables her to maintain her presence and strength on Earth, and promises to find a way to change his fate if he continues to help her.

Episode 1
Hikaru wears a partially unbuttoned shirt, and Ryosuke unbuttons his shirt so that Lisara can use his 'spirit' for energy.