On her first day of school, the clumsy freshman Song Wanxing collides with Jiang Yu, the “iceberg” of the student discipline department, and narrowly escapes punishment. Instead, she is “assigned” to work as his assistant. Faced with this walking embodiment of the school rules, Song Wanxing is on edge. One day, Jiang Yu catches her longing for a lotus seedpod from the pond. His unusual silence and question, “You want it that badly?” leave her utterly confused. Even more absurdly, her friend urges her to try calling him “hubby”! Would the strict deputy head of the discipline department really break his principles over a joke? In their youthful school days, frozen rules and quietly growing feelings begin to collide.