When Nihong was fourteen years old, he met Qingya, the young master of the Western Kingdom, and by chance, he traveled with him to the northern Xuanwu Kingdom. During the journey, I met monsters and gods with different personalities, and listened to their fleeting stories in their long lives. However, the two got separated along the way, leaving Neon alone. How can she survive alone in the bizarre and unpredictable demon world, and what kind of adventures will she have? How will the inexplicable love between her and Kiyoya end? Who is the strange and charming man on the dragon chariot?