Read manga: Black Yome ni Yoroshiku!

manga
Summary:

Shinta, a normal highschooler on his way to school, gets (yet again) into an accident, but instead of dying, he is saved by a girl wearing nothing but black. She says that she is a shinigami and has come to become his wife, as promised. By the author of Kamen no maid guy, a perverted comedy with a shameless main character!