The Hero Laughs While Walking the Path of Vengeance a Second Time Vol. 1 Manga
(W) Kizuka Nero (A) Yamo Yomoya
Kaito has been summoned into another world as a hero, and though all goes well for a time, one day his entire party betrays and mercilessly kills him. So when he suddenly gets a chance to redo his life, starting from the point he was first summoned to this world, he swears to exact vengeance on everyone who stabbed him in the back...