This anime follows the story of Long-Yue, who finds herself in a difficult situation where she has to agree to be the lover of the school’s popular playboy, Shunri, for seven days in order to save her boyfriend. However, as the story progresses, it reveals a hidden secret about Long-Yue and Shunri’s true identities. Along the way, new characters, including a secretary, police officer, and Yue’s senior, join the mix, adding more depth to the plot. On the second day of their relationship, unexpected events unfold, bringing more mystery and intrigue to the story