Chillin' in My 30s After Getting Fired From the Demon King's Army

Bashbarza is in a rage after being reprimanded by the Demon King for losing the mythril mine. Meanwhile, in Lux Village, the mood is a celebratory one. Dariel runs into an old coworker and sees an opportunity to prevent conflict between humans and demons.

Lux Village is starting to thrive, thanks to the Mythril Mine, but Fittbitan has taken control of the forge. The arrival of a legendary swordsmith makes Fittbitan view Dariel with even more hostility, and so the adventurer challenges Dariel to a duel.

Dariel is shocked at the identity of his unexpected sauna companion. How will this affect their future? Dariel stands at a crossroads in his life and Lux Village begins to change. Then, one day, Dariel hears that the Hero’s party is visiting the village.

The Hero, Laidy, has two objectives: to have new mythril weapons made, and to find a new ally to help defeat the Demon King. Laidy becomes aware of Dariel's true abilities and asks him to join her party. Dariel declines, but Laidy refuses to accept it.

The strongest Hero, Alantsil, has come to visit. Unable to forgive the demons for the tragedy in his past, Alantsil attacks Zebiantes. Dariel tries to convince Alantsil not to fight, but to no avail. As they talk, the secret of Dariel's birth is revealed!

Alantsil, the previous Hero, and Granbarza, formerly one of the Four Generals, confront each other. One wrong move could bring them to blows. Meanwhile, Bashbarza’s hatred for Dariel explodes, and he heads off to do something about it.

Dariel and the others rush to the Mythril Mine on a rescue mission, but the Magical Fire Beast, Salamandra appears in their path. Dariel presses ahead with their rescue efforts, but Bashbarza, who has obtained tremendous power, has other ideas.

Humans and demons take a stand to protect what is dear to them. During the fight, Dariel comes into contact with Bashbarza's memories and the two men's emotions collide. What will be their future, and the future of Lux Village?