Shen Yicheng and Jiang Rourou are childhood sweethearts who are the most compatible in the eyes of their neighbors. From stealing fruits from their neighbors together as children, to accompanying each other and sharing their thoughts when they were in school, the friendship between the two gradually fermented over the years. As we grow older, ignorant feelings quietly arise in our hearts. One night, after attending a friend's party, the two of them walked home drunk under the moonlight. The ambiguous atmosphere spreads like a tide, and the inadvertent glances make the long-suppressed emotions explode instantly. With their breathing intertwined and their heartbeats accelerating, the two embarked on a forbidden journey that belonged only to them in the dim light. After that, their relationship changed subtly. It was both sweet and shy, and every time they got together was full of heartbeats and throbbing. From young temptation to passionate embrace, they explore the boundaries of love in each other's arms and write a private romance belonging to childhood sweethearts.