Kaiko sareta Ankoku Heishi no Slow na Second Life

Dariel has spent years serving Granbarza, one of the Four Heavenly Generals in the Demon King's army, only to be cast out when Granbarza's son Bashbarza dismisses him as a failure for lacking magical talent. Chillin' in My 30s after Getting Fired from the Demon King's Army begins with that abrupt exile. With nowhere to go, the thirty-something former dark soldier wanders into the forest, rescues a human girl named Marika from a monster, and is welcomed into her village. What looks like an early retirement becomes the start of a quieter life in human lands, and Dariel soon discovers that the skills he took for granted can make him an exceptional adventurer. Away from the army that raised him, Dariel starts to uncover unsettling truths about what he is capable of and why he could never use magic like the demons around him. His power may surpass even heroes, but using it draws him into the widening conflict between humans and demons. As his new home gives him people worth protecting, the loyalties tying him to the force that cast him out grow harder to ignore. Dariel's second life turns into a struggle over hidden powers, divided identities, and the future of the worlds on both sides of that divide.