Bo Yan is a retired soldier and former elite warrior, calm and steadfast. Jiang Ling is a lively, mischievous young heiress. In the underworld, Bo Yan unexpectedly saves Jiang Ling, who then draws him into a series of events there. Bo Yan relies on his extraordinary combat instincts and physical prowess, while Jiang Ling can communicate with spirits. As they match wits, trade blows, and get up to mischief in their everyday lives, their feelings for each other deepen. Together, they hope to find peace and happiness in the underworld and resolve its crises.