Treasure Chest Monster Won't Let Me Go

Alien labyrinths have appeared in various places for hundreds of years; Goblin technology that breaks the traditional war pattern; A wrestling match between gods and mortals using fate as a bargaining chip. Zero lost his memory and fell into a maze by mistake, and embarked on his own adventure because of a treasure monster. During the journey, he met companions with different personalities and gradually uncovered his own mystery. However, as the truth emerged, Zero discovered that he had already been involved in a huge whirlpool...