ISEKAI AFFAIR: 10 Years After Defeating the Demon King, the Hero Cheats on His Wife With a Warrior Woman Who Lost Her Husband

Yuuta Shimabara, who was run over by the truck, reincarnated in a different world as a hero and subdued the Demon King with unrivaled power! ── Ten years later, what he has to show for is a mediocre and hard-working daily life. However, the forbidden love with the female warrior Lucas, a member of the Demon King Subjugation Party, heats up…!?