Lu Zhan, the retired war king, lives in seclusion in the city with the "Xuan Neng Battle Armor" Golden Finger. However, due to an accident, he saves Su Qingyan, who has a peerless appearance, and becomes involved in a fantasy dispute. Su Qingyan carries the secret treasure of Xuanmen, which attracts the pursuit of her jealous classmates, spies lurking in the city, and the paranoid and yandere young master of Xuanmen. Lu Zhan, with the idea of being "the greatest chivalrous man", used his mysterious power and armor to defeat the villains, but found that Su Qingyan's "evil" was just a misunderstanding of the world, and the two gradually fell in love, starting a road of love between good and evil. As the crisis deepens, the identity of the BOSS behind the scenes gradually emerges, and is closely connected with Lu Zhan's past and Su Qingyan's life experience. An urban fantasy battle to protect justice and love begins.
