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Let me tell you, the author's message on the title page is deceptive. It's a different kind of concave and convex competition. I thought it was a campus novel at first, but... What kind of campus novel is this? So cruel! It started well, but now, I won't be doing this reality show anymore! Original work: Concave and Convex World. Protagonist: Friends who are guest stars, Zi Tangli, characters you know in the concave and convex world.