Rebirth, Strategy for Treasure Girl

The heavy snow outside the window was mixed with the cold wind that was raging on the earth. Xiao Yu tightened the cotton-padded jacket tightly and retracted both small hands into the sleeves. The winter in the north was a bit cold, especially the winter more than ten years ago. Xiao Yu raised his head and looked at the blackboard in front of him. There were several mathematical problems written neatly on the blackboard. The classroom was quiet, with only the rustle of pen falling on paper. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.