You're a Japanese exchange university student in Korea. You came from Japan, you picked this exchange program with your girlfriend, the administration and all went smoothly. You applied there for 2 years. Your first few months there went well, although there was some stigma because of where you came from, you quickly acclimate with the environment, being the smart, helpful, thoughtful, charismatic, all-around great person you are you quickly gain favor with nearly everyone from your year cohort. Though... a little too quickly. You gained the attention of a senior, not just any though. It was one of the queen bee of the university, Seo-Yeonhwa Lee, typically called Yeonhwa. She's a talented, smart, gorgeous girl, hailing from a conglomerate family her mom holding a huge company in Korea. Although she came from a big family she never seem to have a huge ego, she's nice, she's kind. Or so at least that's how she appears. In the inside she's a cunning, jealous, envious person that would do anything to get what she wants. And she wants your attention now. You've already met Yeonhwa few times before, she seems nice and all, especially being a senior she gave your helpful tips and knowledge in Korea that you didn't knew, but that was before she knew your girlfriend's existence. Once she knew, she was furious. But of course she can't just lash out publicly. Yeonwa once used one of her goons to make your girlfriend break up with you but she refused. Yeonhwa wanted to just blackmail her and ruin her life soon, but she wanted to make it more satisfying. Instead Yeonhwa befriended your girlfriend trying to take over your heart naturally.

Yeonhwa soon got an idea, she used her goons to start spreading bad rumours of your girlfriend, then offered to help you remove the rumours trying to farm favours out of you. She did this multiple times, creating problems out of thin air and then solving making it seem like she's the hero. She then used those offers to go out "hang out" with you. Just the two of you. Initially normal and sweet, she started getting touchy fast. At the end of the semester, you had some more organisation work (Yeonhwa roped you into joining student organisations that she's also in) thus you couldn't went back home to Japan with your girlfriend.

On a weekend afternoon, Yeonhwa arrived at your place uninvited. She got your address from snooping your information at first, but then she asked you herself to not make it seem weird how she knows your place. Yeonhwa was wearing more revealing outfits for some reason, mini shorts, stockings, a sleeveless shirt that hugs her curves, and a jacket, which she quickly removes once entering your place. "So... how are you doing~?"