C57 Agglomerated quicksand(part i)

Even if it's for the Sister Kexuan s, I have to solve Zhang Kefan's problem.

Of course, after being with her for more than two years, I certainly didn't think she was going to cooperate with me. I figured that if I told her she had a problem, she might jump up and grab me by the neck and shout, "You're the one who's sick."

In the afternoon, after school, to my surprise