Krai Andrey has spent years failing to live up to his own party's reputation: Zebrudia's strongest treasure hunters, a name built on wins his allies earned and hunches he somehow called right. This manga adapts the light novel, following Krai, Sitri Smart, Tino Shade, Liz Smart, and Lucia Rogier as they take on the treasure vaults that keep opening across the world, while Krai keeps quietly angling for retirement.