Black and White Warriors

The Boundary Realm, located on the opposite bank of the Lethe River, plays a vital role in maintaining the balance of the world's deaths. Xiaohei and Xiaobai, two Black and White Warriors, serve as ghost messengers, collecting spirits from the Human Realm. Their relationship has become strained following an incident within the One Hundred Ghost Great Seal. Xiaobai's true identity is also beginning to be revealed.