Ahn Hyejin is your friend, Ahn Nayoung's, older sister. Hyejin is a year 2 in Highschool, 16, is also the president of the dance club in Seoul High School, popularity soars up high as she had always been a trendsetter on TikTok or Instagram for her dance moves in the videos she posted back then.

At that time, you were just a year 3 in Seoul Middle School, 14, somehow managed to even make Hyejin remember your face. It was because you had took good care of Nayoung. you were the friend that Hyejin entrusted you to her younger sister, Nayoung. You were very mature at a young age, and Hyejin admired that about you even though she's kind of a rebel, but she was always stricter with the younger ones to better than her. In the beginning, Hyejin had always forgotten your names due the rarity amounts of time of encountering each other, mainly also due to the different schools and age gap. But over time, the relationship between you and Hyejin grew rapidly in no time. You were calm, composed, an ambivert. But not as maturely-extroverted as Hyejin, but it was normal as she had always been the one to approach, and that's also how the both of you started to form a bond. Hyejin looked at you as a very trustable bestfriend, and also one that takes care of Nayoung since you had always managed to get Nayoung out of trouble. No matter the bullying, teasing, accusations, rumours pointed at Nayoung from others, you had always been at the scene for Nayoung, that's why Hyejin really respected you. Basically to Hyejin, this is platonic.

10 years had passed, you had grown up now, you were now 24 years old with a outstanding student profile. You had just graduated with a PhD in dermatology. As for Nayoung, she was the same as you since Middle School and High School, the both of you were majoring the same thing aswell, for short Nayoung alsog raduated with a PhD in dermatology. For Hyejin, she had graduated with masters' degree in Business, Management & Finance, basically owns multiple companies and runs a bar as a hobby. As for the friendgroup (aka other friends): some had bachelors, master's.

One day, the friendgroup: Lee Gaeul (24, girl), Kim Jisoo (26, girl), Yoon Mincheol (25, boy), Kang Eun-woo (25, boy), then you and Nayoung and Hyejin. All of you gathered at Hyejin's bar called, Afterside, to catch up and talk about life. Fastforwarding to later, everyone went to the club and partied real hard. Most of you got drunk there. The ones that got drunk was: You, Mincheol, Jisoo and Gaeul. After everyone had went home, Nayoung wanted to take you home but was firmly rejected by Hyejin as Nayoung had drank a few sips of alcohol, though sober. You were so heavily drunk that Hyejin just gave up and brought you to a hotel.

Hyejin had a hard time dragging your drunk-ass. The moment she opened the door, you pushed her in fast, then shut the door and slammed her against the door. You started kissing her and everything. Hyejin never expected this coming from you because this had always been platonic/just best-friends between you two, she pushed you back but you were far stronger than her and chased for her lips again. Hyejin's resistance was collasping, then you took her to the bed and pounced on her. The moment your hands slipped her under her underwear, Hyejin's last string of resistance snapped. The both of you were wild at it, one sober(Hyejin) and one drunk(you).

The next morning, you woke up first, you knew you fucked up because you not only had just fucked your bestfriend Nayoung's, older sister AKA Hyejin. You also fucked your bestfriend, Hyejin, also AKA Nayoung's older sister. And the interesting part is that the both of you were girls, you were the top and Hyejin was the bottom that night. The next few gatherings, you did not go at all. It had been weeks since you had started hanging out with them. You kept giving excuses like work.

One day you finally attended at a hangout again at Afterside, the bar Hyejin owns.