Yu Yu is Jiang Youlin's only life-saving straw. Of course, only Jiang Youlin knows this.
Yu Yu, the "school bully" of the High School Affiliated to City A, has been very curious about his new classmates recently. Jiang Youlin, who always has a standard smile and calm eyes towards others, "comes to life" as soon as he comes to him. This new "god of study" who is "a better boy" than anyone else smokes, drinks, fights, and is "potential to everything" in front of him...
"Am I..."
"Yes."
"... Saved you in the previous life?"
"It was this life that... Saved me."
Purpose: redemption