Samayou Shinki no Duelist
さまよう神姫の剣使徒〈デュエリスト〉
In a world reduced to a single city and labyrinth known as the "Great Gate," adventurers face only battle or death. Within this vast structure, Yuuki, an adventurer, encounters a young girl who claims the city is hers. The city's self-proclaimed patron goddess, Shinki Tina, asks Yuuki to help restore her lost powers. Unable to offer money, she proposes an exchange of her body instead. Yuuki, having abandoned his own destiny, joins her in a quest to reclaim the lost power of miracles, aiming to protect the world.