A tragic massacre on a rainy night caused Chu Yunxiao, an orphan of a drug dealer, to step into the world with a blood feud. However, because of a half piece of blood chalcedony, he was involved in a shocking mystery that spanned three dynasties. The poison hidden under the gilded mask of the sworn brother Duan Wuhen, the star map hidden in the silver hair of the agency genius Shen Qingqiu, the treason code written in the Caobang's account book with the price of food - all the clues point directly to the "Tianji Pavilion" that has controlled the world for hundreds of years. When the soft sword "Dragon Swallowing Blade" cuts through the curtain of the conspiracy, three identities are floating in the blood and fire: the former royal lineage, the traitor in the pavilion, and the descendant of the dragon slayer. The jade pendants of brothers who are blood allies repel each other with hidden magnets, the prophecy in the secret realm of the agency points to mutual destruction, and the burning scar on Chu Yunxiao's forehead is slowly opening into a "dragon eye". This time, the arena is not a chessboard, but a bet.
