She was once a Go-Moku prodigy, but lost herself in her marriage. He’s a cold, aloof lawyer whose phone drafts hold 327 unsent confessions. His ten-year secret crush began with a game called “Jiaojiao”: he taught her how to merge watermelons, and she taught him how to love. When a single mother meets the boy from her past, who has carefully planned their reunion, who will be the first to say, “Don’t run away”?