One day Gris, a female shinigami holding a mysterious item appears in front of the high-school boy Aino Seiji trying to force him to kiss a random person. With Seiji choosing to kiss Gris how will his yandere crush, Hiyama Akane, handle it!? Since normal love seems to have become a little boring these days the gallant and (troublesome) messenger of love appears! This love triangle is a matter of life and death! So will Seiji survive this? Find out in this hypertension love(?) comedy.