Kunihiro Sengi

Ten years have passed since four boys and girls were summoned from another world and defeated the Demon King. Arsal, a former hero who saved the kingdom and now serves in the royal army, finds himself falsely accused of a crime he didn't commit. The king, blinded by peacetime complacency, ignores Arsal's calm reasoning and mocks him as a useless burden, completely forgetting his heroic deeds. Fed up with such foolishness, Arsal abandons the kingdom, grabs his severance pay, and sets off on a carefree journey to enjoy a slow life. However, his overwhelming power makes the world see him as a dangerous threat aiming for world domination!? "Fine then — extinction it is."

I’m good at support roles, can I join your party?" Ragdishart, a young explorer, has the ability "Enhancer": an ability only chosen by 1 in 100, and is infamously considered the weakest ability ever. No-one would let him in their party, but little do they know, he holds a second, more powerful ability. "Multitasking", which means he can simultaneously control 10 or more arts. Requiring superhuman concentration ability, it takes him only 3 minutes to be able to strengthen his physical ability 1024-fold. Hence, Ragdishart is both the “weakest” and “strongest”. In his adventures, he travels to a ruined tower that extends to the moon, called “Lunatic Babel”. When a human boy meets a deity girl, the story begins.