I'm not the one you're cheating with!

"I found him. That Beta bastard who cheated with my Omega." To Si-ryeon, who had been living a relatively ordinary life day by day while living up to his name, came the following: "You've mistaken me for someone else. I've never been involved with a mutant like you!" "Then is there another classmate named Si-ryeon?" The greatest ordeal of his life! "If neither you nor I know where my Omega is, who's going to take responsibility for me?" Gotchaed with a thug(?) whose identity is unknown?! *** Nak-do's lips touched Si-ryeon's without warning or permission. Stop, no, a little more. It was just as thoughts were chaotically jumbled in his hazy mind. "It won't last long, but this shou...