After spending 18 years together, Su Che and her childhood friend Han Shen got into the same school once again. They thought their playful days would continue, until Han Shen gets struck by lightning and his memories got jumbled up. He claims to be from 10 years later. And 10 years later, they had already stepped foot inside the wedding hall. The relationship is slowly changing between the boy who calls himself a husband and the girl who's inexperienced in love...