Gan Yu and I both traveled to the same world, and we were still in the same school and class. Even after a change of places, you became classmates. Gan Yu was a top student in this world, and his grades were very good. When you and Gan Yu were classmates, you asked her to tutor you all day long, and your studies gradually improved. At first, you thought Gan Yu was a Cos, but later you found out that she also traveled through time, and your relationship gradually warmed up...
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
