When unassuming adventurer Haruki Soraboshi returned home from a dungeon that appeared in Sapporo's "Chikaho," he found his own garage had transformed into a dungeon.

At the dungeon's entrance, he discovered something resembling a stone tablet.

Could this be... a Skill Board?

Haruki ventures into the dungeon, utilizing the Skill Board.

He'll make full use of the board, eventually becoming a top-ranker and a noticeable presence!

—Or so he thought, but for some reason, he's become a suspicious individual wearing a mask and carrying potatoes on his back?!

Can he truly conquer the dungeon as a 'normal' person?

※This work is a 'fiction' completely unrelated to any real Earth, Japan, companies, organizations, or individuals.

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