Chess Guardian of Chang'an

In the prosperous city of Chang'an, light and shadow intertwine, order coexists with chaos.

Yao Tian is an organization operating in gray areas, viewed by the official Dali Temple as a potential threat and "villain". Inside the organization however, it shelters an unsocietal warmth.

Yi Xing is the most special member of Yao Tian. Though physically frail, he is everyone's carefully protected "group treasure"; though mentally exceptional, he is a genius in chess theory who can predict everything on the board. When conspiracy currents try to push Yao Tian into abyss, when Di Renjie's keen eyes focus on them, Yi Xing is forced to leave the warm courtyard and enter the power chess board.

He cannot wield a sword, yet can delineate boundaries with chess pieces; though seemingly fragile, he is willing to face against the entire world's order for protecting his behind. This is a journey to battle for "family". The crisp echo of falling chess pieces silently declares: with my way, I will guard this city and you within this city.