Yucai School Principal Lin Wan witnessed all teachers and students perish in an earthquake in her past life, and was reborn thirty days before the earthquake. Determined to reinforce the dangerous building and conduct earthquake drills, she was obstructed by Vice Principal Zhang Cheng, while retaking student Wang Hao and his parents also strongly opposed. Lin Wan sold her assets and raised funds everywhere, facing parent blockades and smear campaigns, while Zhang Cheng even sneaked in at night to replace building materials with inferior ones to frame her. The earthquake struck as scheduled, and the reinforcement project and daily drills saved the teachers and students, with Lin Wan even risking her life to rescue the trapped Wang Hao. After the disaster, Zhang Cheng repented, the new school building was completed, and everyone gathered for the opening ceremony, highlighting educators' steadfast dedication and devotion of not leaving a single person behind.