Marvel Transformer System

Chengyun's system is obviously a transformer system, but he traveled through time in Marvel. I'm so tired. If it weren't for the transformer, Chengyun would have been killed hundreds of thousands of times. Do you want to see how Chengyun uses the transformer to make a comeback? Then come in and take a look. Ps: This is my first time writing a novel, so I won't write well. The system of adding a sentence is very ** This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.