[The identity of the heroine Black Fang, the growth of Red Fang, joining Red Fang, and undercover Black Fang. After committing suicide, Sakura Sakai returned to more than ten years ago in the state of her soul and stayed in a four-leaf clover pendant, where she was his guardian spirit. "Later, she broke her promise. She was bound by the system and returned to the original point in time. After resurrecting, she joined the winery and learned the truth about the death of her parents and her own identity. However, as the real wine of the winery, she was sent to the police academy as an undercover agent, and after graduation, she was sent to the winery as an undercover agent.
Purpose: Growth and Redemption