In ancient times, the fallen evil god "Dragon Spirit of the Underworld" invaded "Kindergarten", but was defeated by the sacred beast "Shenlong", leaving only the evil Yuanling... In order to be reborn in the world, he wanted to set off a martial arts catastrophe to cleanse "Kindergarten", and "Sanqing", who gathered the power of Shenlong, unexpectedly appeared in the world. "Dragon Spirit of the Underworld" was afraid that the "Dragon Bone Sacred Sword" that integrated the power of "Sanqing" would bring him a fatal disaster, so he wanted to kill "Su Huanzhen" to take the sword. Many years ago, when the "Asura Lord" of the Demon Realm could not break through the realm of cultivation, he was shocked to see "Hua Xinfeng" easily break through and obtain the evil sword "Yana Demon Sword". He was in such a supreme position, but left the Demon Realm without any nostalgia, which made "Asura Lord" hate him. What kind of waves will the two people who meet again cause? The new generation of Central Plains leader "Su Huanzhen" joins forces with "Yi Ye Shu" for the peace of the bitter world. One is in the light, and the other is in the dark. They uncover the real dark forces behind the coveted bitter world layer by layer. "Yi Ye Shu" and "Ban Chi Jian" discuss the world situation and the life and death of "Su Huanzhen" on the suspended chessboard. What shocking truth will "Yi Ye Shu" reveal? What unknown purpose does "Ban Chi Jian" have? Who will win this game of chess?