The Guardian of the Lost Sheep

Yanai is a man who has been committing crimes since he was a teenager; but in accordance with his father's dying wish, he enrolls in the Priesthood and tries to change his ways.

He finds momentary peace within the church, but this tranquillity is shattered when he realizes that he's once more being tempted towards sin by fellow priest Yuna, whose persistent advances are becoming increasingly difficult to resist in more ways than one...