Ni Dome No Yushiya Wa Fukushiyu No Michi O Warai Ayumu 1-1-2Dome/no/yushiya/wa/fukushiyu/no/michi/o/warai/ayumu 1-1-Emuefu Butsukusu MF/butsukusu Uragiri Ojiyo (MF Books) [Light Novel]

[Machine Translation] What went wrong? I, Ukei Kaito, who was summoned to another world as a hero, ask myself this question. I became a hero, defeated the Demon King, and saved the world, but.... I was betrayed by all the party members and made an enemy of the world, and I became a hunted man. The people I thought were my friends, with whom I had shared so many hardships and joys, accused me of a crime I did not commit, and finally killed me. As I was dying, instead of praying for salvation, I cursed myself to torment, torment, torment, and kill them. -I was summoned back to that time when I was in another world. With the memory of being killed by a traitor. The princess, the magician, the saint, the knight, the merchant, the king... I will kill them all! I will drown them in a bloody pit of pain and screams, in the cruelest way possible, without a shred of relief! I set out with a beastman girl who shares my vengeance! A heroic fantasy of revenge in another world! Now, the revenge begins.

何が悪かったのだろう。勇者として異世界召喚された俺―宇景海人は自問自答する。助けて欲しいと乞われるがまま、勇者となった俺は魔王を倒し、この世界を救ったのだが...。もう用済みとばかりにパーティー全員から裏切られ、世界の敵に仕立て上げられて俺は追われる身となった。苦楽を共にし、仲間だと思っていた奴らに無実の罪をなすりつけられ、ついには殺されたのだ。死ぬ間際、俺は救いを願うより、こいつらを苦しめて苦しめて、殺してやろうと呪った。―やがて気が付くと、俺は異世界召喚されたあの時に舞い戻っていた。裏切り者に殺された記憶を携えて。王女を、魔術師を、聖女を、騎士を、商人を、王を...コイツらを必ず皆殺しにしてやる!最も残酷な方法で、ひとかけらの救いもない苦痛と悲鳴の血の底で溺死させてやる!!俺は復讐心を共有してくれる獣人少女と共に旅立った!異世界リベンジ勇者ファンタジー!「―さぁ、復讐の始まりだ」。