From a caste based high school, bottom-tier Naomi Masatsugu is caught up in a summon of his class to a different world. However, as soon as they arrived the king said, "This guy is unnecessary because he only has clumsy skills " and it is concluded that

Daiki Morishita, who transferred to another world and became a brave man, came back to Japan, defeating the demon king. However, in fact, in the dark society of Japan, the (in this case rare) world of battle-like battles was expanding. This is a story