Marvel: Get super serum at the beginning

Qin Xiao traveled through time, and the system arrived as promised! Portal to world, Marvel Cinematic Universe detected? What's happening here? Qin Xiao, who thought he was traveling through a series of time travels, discovered that the so-called real world was just an abandoned timeline of Marvel! It's not brainless, the timeline and events and characters are rigorous and doesn't distort the characters. A must-see for Marvel fans!