Wen Tang has been doing nothing all her life, but she is also happy to be free. Unexpectedly, when he opened his eyes after being laid to rest, he was back to the time when he was fifteen years old.
Wen Tang's eyes darkened: Help, I don't want to live another life!
Fifteen-year-old Song Mu was taciturn and kept to himself until he was forced to transfer to another school and met Wen Tang. The girl is small but very powerful: "My deskmate, do you want to learn math with me?"
Intention: There is no limit to learning