Failed the College Entrance Examination, Started Building Mechas from Signing In

After failing the college entrance examination, Qin Feng returned to the village and started building mechas I actually got the system, hahaha, I actually got the system like in the novel "Ding, if you sign in successfully, you will be rewarded with the original Gundam design drawings." "Ding, if you sign in successfully, you will be rewarded with the design drawings of the first-generation machine." From that day on, Qin Feng's life has undergone earth-shaking changes, and the world has entered the mecha era. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.