: To survive, Hajime is forced to eat the flesh of powerful monsters. This traumatic act mutates his body, turns his hair white, and grants him superhuman abilities and the power to create advanced weaponry, such as his signature railgun.

The story centers on , an average high school student summoned to the world of Tortus along with his classmates. While his peers receive "godlike" combat skills, Hajime is granted the Synergist class—a non-combat, blacksmith-like role that makes him the target of constant ridicule.

: The ordeal changes Hajime's personality from a timid otaku into a cold, pragmatic survivor who will kill anyone standing in his way to get back home. Key Characters and Relationships

: A dragonoid (Dragon-born) who joins the group after a series of comedic and intense battles.