소꿉친구의 쓸모

After catching her fiancé cheating, all Seo-Ha wanted was to drink the pain away. Drunk and heartbroken, she shouted she'd sleep with another man too – only to wake up in a stranger’s room, in just her underwear. But the man isn’t a stranger at all… it is Do-Hyeon, her childhood friend turned longtime nemesis. What the hell is he doing here? (Source: Manta) Note: Includes six extra chapters.