Lin Xinggui, an orphan girl who lost her parents on a rainy night, was adopted by professor Lu Chen who was eleven years older. For ten years, she hid her thoughts as a girl, but in a laboratory explosion, she discovered that the ring he kept close to his body was engraved with the starry sky on the day she was born. When her best friend Cheng Yue was involved in a bizarre incident with the gentle planetarium director Shen Mo to protect her secret, the four of them were shocked to realize that the heartbeats that transcended age and ethics had long been woven into an inescapable web by fate.
Intent: In the battle between love and ethics, adults trapped in secular rules will surrender to the heartbeat of teenagers.