A young boy name kuki was a human,he was bullied by his peers and look down and they let them do difficult tasks even though he was an F-rank his peers was way above his rank, so he was a punch bag for his peers but he never give up on hope and his dream. One day when they enter D- rank dungeon, he was left alone in the dungeon by his friends while they go on the other side of the dungeon, lost in the dungeon he roam mindless, suddenly he found a dungeon, name, Occultum/Occultus he enter the dungeon and look around in an amaze, there he show a statue, a being which is neither a human nor a monster, a being who have 72 wings and 73 tails with 6 hands, 2 hands holding a Swords, 2 hands casting Magic and 2 hand holding a Shields. Now a new path was drawn for the mc after meeting the statue, where his adventure to triumph over the world just begin.