After a bloody battle on the battlefield and an unexpected exchange of souls, the spirit of a battle-hardened marquis and that of a timid young master switch places at a modern university. Ye Lingchuan, the Marquis of Zhenbei of the Dayao Dynasty, spent half his life at war. In an instant, his soul was transported to another world, where he became Shen Zhichen, a wealthy student at Jiangcheng University. The suffocating pressure of his family and the torment of campus bullying could not break a spirit tempered by years of battle. Instead, they led him to meet Song Zhixia, the spirited modern girl who stood up for him.
She introduces him to this unfamiliar world, while he protects her with the noble bearing he has carried for a thousand years. Love blossoms in their everyday moments, only to shatter amid misunderstandings. The moment she leaps into the river, time and space shift, and fate begins anew. When a modern girl finds herself in an ancient marquis's estate, and a battle-hardened marquis returns to his homeland, their love across time will finally reach its moving conclusion amid war and the warmth of everyday life.
Their souls exchanged in the present, their love returning to the past. One glance spans a thousand years; in this life, they will never let each other down.