On the eve of her wedding, Shang You, a young woman from the Holy Spirit Tribe, unexpectedly rescues Si Yuan, the Dark Lord of the Underworld Tribe. However, on her wedding day, her entire tribe is wiped out. To resurrect her people, Shang You disguises herself as Meng Li, a deer demon, and infiltrates the Underworld Tribe to steal the Dark Lord's Amber Heart. During their time together, she unexpectedly falls in love with her enemy. Despite this, she still chooses to take Si Yuan's heart to revive her tribe, only to later discover that her real enemy was someone else all along.
21st Century College student Su Meimei grew up beside her grandfather. She often listened to her grandfather telling stories about the Red Army’s Long March. Whenever my grandfather mentioned his sacrificed brother, he couldn't help but shake his head and sigh. After Su Meimei graduated, her grandfather became seriously ill. She returned to her hometown to visit her grandfather and inherited the Shengli Supermarket opened by her grandfather. Because of an accident, Shengli Supermarket was bound to the Wanjie Supermarket system.
Back in the place where she was originally murdered, she tries to investigate what happened and learns from the servants that Zhao Qing had often complained about her past self, Chu Zi Qian, as not being worthy of him, trying to get out of the marriage several times, and always arguing with his father the Emperor over it. Concluding that he must've hated her enough to kill her, Chu Zi Qian, now as Lin Yan, decides that it's time for payback.