ABYSS SEEKERーーWhat Do You See Deep in The Abyss

In this world, Pentagaia There is a castle in the sky where secrets are said to sleep. The lords of the five kingdoms, who have come from the five worlds to the from the five worlds to the Castle in the Sky, wishing to return to their original worlds. The lords of the five kingdoms who have moved from the five worlds to the Celestial Castle in hopes of returning to their original worlds. The "sixth seeker" suddenly appears in the castle. At the same time, a mysterious dungeon gate also appeared. She has lost her memory, and all she remembers is that she has to is that she must go to the aby(Storyline via IGDB)