Many gods live in this city, and in the center of the city is an "underground city" that leads to the deepest part of the earth - the abyss. The name of the city is the labyrinth city of Orario. The goddess Hestia and the adventurer Bell Crane are the smallest composition of the main god and just one family member as always. But Bell, who has achieved the world's fastest upgrade, has begun to attract unprecedented attention - the encounters and adventures in the labyrinth - this is the story of the boy's journey and the goddess's record of the "Family Story" that begins to be woven again.