Gu Shifei never thought that he would be transported to a parallel world because of a love letter, let alone that his fiancé had an unforgettable secret love.
On the first day she transferred to another school, Gu Shifei saw Jiang Shiyan being bullied. She still remembers the look in his eyes when he went to prison, which showed whether he was desperate or calm.
Gu Shifei rescued him, and he had a little brother from then on.
