Toya Senji is talentless. He's tried everything but he can't seem to excel at anything no matter how hard he tries. Then he meets Haito, a Kendo champion and... humanity's protector? She uses the Stem of Reincarnation to draw on the abilities of her past lives, but it only works when she slits her own throat. And now she wants Toya to join her?!

Childhood friends Yukiya and Miku share everything…except their feelings. Ever since sixth grade, they've played a "love game": they take turns saying "I love you" and whoever gets flustered first loses. Now in high school, their hearts are closer than ever—but will they finally find the courage to confess?