Doom Slayer Crossover Fanfiction

The story follows a person transported to another world as a dwarf named Karma. While living a quiet life in this new realm, Karma encounters Freya, a succubus Demon Lord, who commands him to undertake a seemingly impossible task: assist her in completing her mission in this world. Freya presents Karma with a stark choice—ascend the Sky Tower of Doom to kill her or remain in the tower and love her for eternity. As Karma grapples with this dilemma, he meets Mirai, the world’s hero, who is desperately hunting him to obtain the Black Crystal embedded in his body. Mirai pleads with Karma to sacrifice his life for the sake of humanity and her mission on this planet. However, when Karma refuses, she offers an alternative: she’ll stop attacking him if he agrees to join her and live peacefully in the city of humans. Caught between the conflicting demands and missions imposed by the goddess on both the Demon Lord and the hero, Karma is thrust into a chaotic, nerve-wracking, and relentless adventure that upends his tranquil existence, forever altering his peaceful life.

母親から受け継いだ異能でクライアントからの依頼をこなす高校生の勇人。 異能とは、魂の色が見える力だ。 母親から聞かされてきた、運命の人は魂が金色に見えるという夢のような話を胸に、いつか出逢えたらと願ってきた。 そして、ある依頼の場で、金色に輝く魂の持ち主と出逢う。 それは、一流企業の御曹司で住む世界の違う大人の男性、優和だった。 迷い戸惑い、ぶつかってみて、あろう事か優和は勇人に同居を持ちかける。 お互いに運命の人かどうかを確かめる為の同居、それは二人に何を芽生えさせるのか？ 唯一無二の純愛を捧げる物語。