Other names:
Akuma no Kagi to Shoujo no Raison d'Être; Akuma no Kagi to Shoujo no Raison d'etre; The Devil's Key & Girl's Raison d'être; Дьявольский ключ и смысл существования девушки; กุญแจปีศาจกับเหตุผลการมีอยู่ของเด็กสาว; 恶魔的钥匙和少女的存在理由; 悪魔の鍵
One day, Natsuto found a loli near his house and it turns out she's a Holy Loli that is in a mission to eradicate the demons that escape from the Chaos Realms and as well as find the Key that can summon demons. Source: (Kisu KMS)
