Yakusai ga Ore wo Ai shiteru

The most grotesque pure love story begins. Airi is Kanji Todoroki's childhood friend. Unfortunately, Kanji had died in a quarrel. To save him, Airi presented herself to the devil Aion with the only wish of the devil is to "know human love." As a result, Aion turns into Airi and tries to nurture Kanji and gain his love. On the other hand, Kanji turns a fierce hatred on Aion who stole Airi.