"You're banished too!" Nico Flamel, an alchemist, was banished from an S-rank party alongside a cool girl with "crimson eyes," a trait detested in this world, whom he had stood up to protect. The two banished individuals form a new party and end up living together in a small atelier located in a frontier town...?! The laid-back, happy, slow-life days of a kind-hearted alchemist—who is completely oblivious to his own overpowered abilities—and a cooldere girl officially begins!