Marvel Dimensional Trading System

After waking up from a dream, Joe transmigrated from the 21st century to Chicago in 1943, becoming a poor street youth.World War II? For Joe, who hasn't grown up yet, it's too far away.As an orphan, how to survive in this era is the most important thing.Fortunately, he has a dimensional trading system. In this era, becoming a time-space merchant, life might be better.However, a few months later, Joe, whose life had just improved a little, stared at Captain America singing and dancing with a group of girls on the war fundraising charity performance stage, and fell silent.It's over, screwed.This is actually Marvel!