Class Teni ni Makikomareta Conveni Tenin no Ossan, Yuusha ni wa Hitsuyou Nakatta Amarimono Skill wo Kushi shite Saikyou to Naru you desu.

A Middle-Aged Convenience Store Worker Gets Caught Up in a Class Transfer to Another World, and Becomes the Strongest by Mastering the Heroes' Leftover Skills.