The Hero Laughs While Walking the Path of Vengeance a Second Time Novel Volume 1 was written by Kizuka Nero.

Summoned to a fantasy world as a hero, Kaito Utage defeats the Demon Lord alongside a band of noble adventurers…only to be double crossed and brutally murdered by his former allies! But when a twist of fate gives him a second chance at life with all of his memories intact, he sets off on a quest to slaughter his traitorous party members one by one. “Come...let vengeance commence!”