The God-Slaying Copycat

[If it’s to protect someone close to me— I would even kill god]. Half a century ago, [Dungeons], [Monsters] as well as people who have received special abilities commonly referred to as [Skills]. Those people were referred to as [Adventurers] and challenged dungeons in search of dreams and riches.
Kisaragi Tsukasa is one of these adventurers. However he has received an inferior skill and was often deemed inadequate. One day, he was tricked by his peers and was transferred to a dangerous dungeon. What awaits him at the other end was the Mythical monster, [Fenrir the God-killer]. Despaired by the overwhelming power difference, Tsukasa was prepared to die. That was when the master of the dungeon [Loki] appeared before him. “Welcome to my castle”. Thanks to Loki, Tsukasa’s skill [Copycat] started to evolve…? A unique boy meets girl story weaven into a modern battle fantasy is about to begin!!!