A Nobody's Way Up to an Exploration Hero

Kaito Takagi is an unassuming high school student who keeps his head down, splitting his routine between classes and dungeon runs that have become part of modern Japan. To earn a little money, he spends his time taking on low-level monsters like slimes, all while quietly harboring feelings for his well-liked childhood friend.

Everything shifts when a rare golden slime appears in the dungeon. After defeating it, Kaito obtains an extraordinarily valuable card with the power to summon mythical beings—and when he uses it, a beautiful warrior maiden answers the call. With that encounter, Kaito’s once-ordinary days as an explorer begin to change, setting him on a new path of fantasy-tinged battles and ambition.