The Hero Laughs While Walking the Path of Vengeance of Vengence A Second Time, Vol. 1 (light novel)

Summoned to a fantasy world as a hero, Kaito Utage defeats the DemonLord
alongside a band of noble adventurers...only to be double crossed andbrutally
murdered by his former allies! But when a twist of fate gives him asecond chance at
life with his all his memories intact, he sets off on aquest to slaughter his traitorous
party members one by one. "Come...letvengeance commence!"