Start with Man of Steel

In the early days of Marvel, Mu Luochen accidentally traveled to the Marvel universe, and also possessed the system, transformed into Superman, and fought against evil with Iron Man and others. He became a special helper of the Avengers, killing Chitari, fighting Ultron, killing Thanos, and transforming into Silver Superman and Gold Superman, becoming a cosmic powerhouse. However, more troubles followed one after another... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.