After a great victory on the frontier, Prince of Zhennan Xie Yunce returns to the capital with the heroic souls of fallen soldiers. Shen Zhiwei, a young woman of the Shen residence, finally sees the hero she has admired for years, only to witness the sacrifices behind the triumphant return as she looks beyond the funeral procession. An encounter beneath red silk intertwines their fates. Shen Zhiwei becomes a sword disciple and investigates the theft of soldiers' compensation funds, seeking justice for fallen warriors and their bereaved families. Xie Yunce remains steadfast in defending the realm and protecting its people, yet rumors repeatedly plunge him into danger. Even when the truth is concealed, they continue to protect each other and the countless people of the realm with courage and a sense of duty. This is a story of devotion to country and family, unwavering faith in innocence, and steadfast protection without regret. A true hero is not defined by fame and honors, but by the willingness to stand up for all living beings in times of danger.