After their parents died, Shinichirou is managing a shinto shrine together with Ayano and Shino,his younger sisters. One day while he is trying to pacify his quarreling younger sisters, he accidentally hit a sacred relic and causes to disturb the slumber of the enshrined goddess. Enraged by the interruption, the furious goddess brandishes the blade of her sword. While trying to protect his precious family, Shinichirou sacrifices himself shielding his younger sisters with his own body and receives the fateful blow from the raging divine being. No wound is made but his soul is gone, he looses consciousness, his heart stops, and then he finally di... No, he lives! His ecchi life is just about to begin.