Season 1

Eve's final bloodsport match is tomorrow, but the duke running the colosseum is plotting to make a show of killing her off. Touka tries to warn Eve of the scheme, but she can't bring herself to believe him.

Seras has sworn to become Touka's sword in his quest for vengeance against the Goddess Vicius, so Touka follows Seras to Ulza's royal capital, Monroy, the gateway into the Land of Golden-Eyed Monsters.

Civit Gartland, known as Humanity's Strongest, comes for Seras on the order of Neah's Emperor Ortola, the man she once served faithfully. This discovery shatters her spirit, so Touka steps in with a dangerous gambit to save their lives.

Touka asks Seras to guard him on his way to the Land of Golden-Eyed Monsters. They agree to meet after the reward ceremony for conquering the ruins, but Seras doesn't show even long after the appointed time.

Touka arrives in a new city and decides to try his hand at the local ruins in hopes of scavenging material for a special potion to enhance his pet slime. Little does he know he'll find far more than he intended to down there.

A skilled actor uses his talents to save a princess from pursuers, uncovering his past and future while regaining his humanity. His friend clashes with a goddess amid the events.

The protagonist defies the system's rules, battling monsters in ruins to gain power and level up, aided by mentors. They triumph over the ruins' master, while someone outside hides from an unknown threat.

While on the road to their field trip, Class 2-C's bus is enveloped in light, and the Goddess, Vicius, summons the students and their teacher to another world. The Goddess hopes to raise them as Heroes to defeat the Great Demon Empire, and she welcomes the students after appraising their abilities with her crystal. However, Mimori Touka is appraised as an E-Class, the lowest rank... and he's branded a trash hero.