I Got Caught Up In a Hero Summons, but the Other World was at Peace! (Manga) Vol. 8

A FOE OF MANY FACES Somehow, Kaito has managed to skate away with his life despite being faced against such foes as the War King and his entourage! Though the appearance of Chro in her Demon Beast Mode quickly dampens raised tempers. Later, a trip to the demon realm has Kaito spending considerable time with Isis, the Death King, where he must confront his hidden true feelings for Chro. Upon his return, with yet more friends and acquaintances added to his entourage, No Face the Illusion King has managed to slip in. What information will the Illusion King throw Kaito’s way?!
Series Overview: Miyama Kaito is no hero. He’s just a normal university student who gets caught up in a hero summons with an actual Hero. But even “Hero” is just a ceremonial role these days, ever since the Demon Lord was killed centuries ago. In a world where demons are chill, nobles are no longer corrupt, wars are a distant memory and there are no more epic quests to complete, what’s a regular guy to do? Why, build a harem, of course!