In a world where one’s entire life is determined by contracts with magical beasts... Zeke, a pauper who formed a contract with the weakest of them all - a Slime - ived a life filled with regret and scorn from those around him.

He eventually grew old and met a despairing end... or so he thought, until he found himself regressed to his childhood!

Determined to give [Fios] - the only partner he truly connected with in his previous life - a better fate this time, Zeke resolves to turn his life around.

Aiming to rise from a slum cleaner to the head of a grand merchant association, he sets his sights on the slime’s ability to dissolve anything. What’s more, it seems his slime partner also possesses a hidden power…?