This Is Not the Rebirth I Want!

The tragic young man Su San accidentally traveled to another world, thinking that he was the protagonist in the novel, and traveled around the other world from then on, but he did not expect that everything that happened next would make him feel crushed. Su San: "Why didn't I even have my own body when I traveled through time? I still have to share the same body with this dumb guy." With two male protagonists, one body and two souls, what kind of ridiculous stories will happen again?