Maken Tsukai no Moto Shounenhei wa, Moto Tekikanbu no Onee-san to Issho ni Ikitai

Seto is an ex-boy soldier who was expelled from the party of heroes on his journey because of his ruthless and incomparable fighting style. The former leader of the Demon King’s army, Satis, was kicked out after a series of failures. The two “former” enemies decide to travel together to find a secon