How to Catch a Returnee

Seo Yeo-won, who was caught up in a secret project as a child and sent to the Demon Realm. After enduring countless hardships among the insane, battle-loving demons, he barely manages to return to the Human Realm. He's been a lord, a legion commander, and dealt with an obsessive lunatic. Having lived such a spectacular life, he decides to live the rest of his days like a pebble on Mongdol Beach. ...After killing the project's head manager, that is. But, of all things, he gets entangled with that bastard's son. 'So, you think it's over just because we slept together once? How can a person be so shameless!' '......' When did I ever say that... Yeo-won finds himself gradually swayed by Sa-g...