Once, Shen Xiao silently guarded his childhood friend Bai Ningxi for seven years, yet never managed to truly understand each other's feelings. An unexpected event sends him back to his youth; this time, he decides not to chase blindly anymore, but instead to interact with Bai Ningxi in a brand new way. Through mutual companionship, the two gradually grow closer and slowly learn to understand, respect, and express themselves sincerely. Facing misunderstandings and tests along the path of growth, they hand in hand pursue their ideals, ultimately realizing that true love is not a one-sided devotion, but a two-way rush and growing together.