Plot

A story about two young demons who are always slacking off at work, a place that happens to be an organization that vows to keep the balance between the worlds of the living and dead by killing humans.

Black and White, Yin and Yang, Xiaohei (Wang Heng), and Xiaobai (Yan Liang) are an ordinary team of Black Guard and White Guard (the soul collector) in the underworld. Xiaobai, who has shocking secrets and a huge amount of hidden power, has been targeted by all the beings from the three realms. As the brother of Xiaobai, Xiaohei cannot help but become the most ferocious fighter to protect his sister and the safety of heaven and earth. Xiaohei and Xiaobai, who are in jeopardy, embark together on a journey into the unforeseeable future.—Anime Made By Bilibili

The online animation "The Unparalleled Black & White" (aka: Heibai Wushang, Black and White Warriors) is adapted from Yu Yanshu's original manhua of the same name, and the animation is produced by Wawayu Animation.

There are three realms between heaven and earth: the heavens, the earth, and the human realm. Life in the three realms is formed by the condensation of spiritual energy. In order to maintain the balance of the three realms, the circulation of spiritual energy must be guaranteed, and the black and white Wushuang of the earth realm are responsible for collecting the spiritual energy. There are intricate origins and entanglements among the three realms. Powers from all walks of life are secretly fighting for their own desires and obsessions. In the darkness outside the Three Realms, there are powerful, mysterious forces coveting opportunities to subvert the Three Realms. Xiao Hei (Wang Heng) and Xiao Bai (Yan Liang) are an ordinary team of black and white unparalleled in the world, but there are amazing secrets and huge energy hidden in Xiao Bai. All circles compete around Xiao Bai, and as Xiao Bai's brother, in order to protect Xiaobai and the peace of the Three Realms, Xiaohei has grown from a naughty child to a powerful warrior. In the Three Realms, Zhong Kui, Lu Shu, Lord Yan, Sha Xiaomi, Dongting, Husband, Yao Renju, Bailong, Chi You, Sansang Wuzhi, Samuer, etc. were all involved in fierce battles, and the little black and little white in the center of the whirlpool embarked on an uncertain journey.