To rescue her family's business, Shen Lanyue takes the initiative to apply and becomes Fu Yanshen's exclusive personal bodyguard. Everyone in the outside world says that after losing his mobility, Fu Yanshen became closed off in temperament, unwilling to interact with others, and spent year after year staying alone in his room. On the very first day that Bodyguard Shen officially starts her post, she patiently breaks open his small closed-off world, taking Fu Yanshen out to clear his mind. With Shen Lanyue accompanying and caring for him day by day with attentive protection, the formerly eccentric and taciturn Fu Yanshen gradually cannot do without this reliable Bodyguard Shen, completely falling for her and depending on her.