Good-For-Nothing Male Protagonist Rescue System

A certain day of a certain year and a certain month. The scumbag Zhao Beichen was complaining while making up his homework, "Damn it, why are there so many left homeworks today? You will die if you do less? What is the coefficient of the quadratic term? I don't understand it at all! Mahler Gobi, if I become a teacher one day, I will definitely make up for the sin I suffered today!" ""Ding, it has been detected that he has a strong desire to be a teacher and meets the protagonist selection criteria of the "Wasteless Male Protagonist Rescue System", bind him immediately! " Determined. … "What? Are you saying that my first student was Nobita Nobita, one of the top ten useless male protagonists in anime history? It's not a joke, right? . " "System, are you kidding me? Sawada Tsunayoshi is my second student? What's the point of having a tutor? Li Baoen won't come to assassinate me, right?" … "Every class starts today with roll call, Nobita Nobita, Takeda Takeda, Shino Onukawa, Shizuka Minamoto, Do... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.