This story is about a boy named Rokumichi Kusaba who wants to confess his feelings to Yayoi Hino, his childhood friend. Unfortunately, after choosing the place to confess, he gets crushed by a train and loses his lower half. Rokumichi then gets saved by a scientist who turns him into a monster instead of a regular human being. What is his life going to be like while being under the guise of a monster? And what will his childhood friend think?!