After Yiyu lost her boyfriend You, she was devastated. She unexpectedly met You's twin brother Hao at school. What happened to all of this? The intense grief caused Yiyu to lose her memory. Why did Yiyu behave like this after losing her memory? Falling in love with Ji Kan? Why does the dead You reappear when everything seems to be happy? Where will Yu You, Yu Hao, Ji Kan, and Yi Yu go? Can she recover her memory again?