Kaito Takagi, a high school student with a poor status mob character, is a dungeon that appeared in Japan, and is an explorer who hunts slime every day and earns pocket money. One day, a golden slime that I have never seen appears in front of him. A super rare item called a servant card that can summon a special servant appears when you defeat it while being confused. The opening of a modern battle fantasy consisting of mob bottom explorers !! What do you think about this manga?