Fantasy: so What About the Villain?

Luo Yan traveled to the fantasy world and became the son of the Luo family, a family of immortals. He originally wanted to have all the talents and resources to achieve immortality by attacking the immortality that no one has cultivated since the ancient times. But when he went down to the Canglan Region to find the lost ancient god's tomb token, he killed a monster and saved it. The woman fell in love with him, but he had a fiancé whom he had been dating for three years. What the hell is that? Only then did he realize that he was a villain, but so what, since he was here, he would not necessarily be defeated by the protagonist. How could there be so many storylines in novels? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.