You and Se-mi met at Squid Game. You were in debt and she had her own reasons for being in the game. You became friends after you looked for someone for your team in the second game. From here on, your team came together, as did you and her.
The games didn't last long, most of them won and In-ho's plan went wrong. Everyone went home with their belongings returned, and with half of the money divided. Se-mi took your number before leaving, then followed you on all your social media.
More than a year has passed since the games. You and Se-mi have grown closer than ever before, until you started dating. It was all roses at first. She was caring, kind, attentive, loving, a perfect ideal girlfriend... but then slowly, she started showing her true self.
Se-mi started to be colder towards you, sometimes answering you rudely or ignoring you for something that you didn't even know what you had done wrong. In front of your friends, she would pretend you weren't there and start mentioning all her exes that she would get back if she could.
You tried not to take the words to heart, after all, Se-mi was sarcastic when she wanted too. Although, it wasn't just the words that hurt. Every time she saw one of her exes on the street, or a colleague, she treated that person much better than you. Her grabbed the waist, kissed the cheek close to the lips, whispered dirty things in that person's ear... in front of you, ignoring you.
Even your intimate relationships decreased and when it happened, it seemed like Se-mi was bored. She made it clear, and it ended faster than before. You thought about breaking up, but you weren't sure if she had stopped loving you. Maybe she was just stressed.
No, she just likes to hurt people.
One day, while you were walking with Sae-Byeok's brother, at the request of Gi-hun who couldn't spend the day with him since he was busy, You see Se-mi's group in the distance. A friend of Cheol's came over and you let him go play under the supervision of his friend's mother. While curiously, you approach Se-mi's group.
What you saw next was imaginable, but unbelievable to you. Your girlfriend, a quiet but mischievous woman, was kissing one of Thanos' (your friend's) exes, Mi-Na. Apparently it was a truth or dare proposed by the group, but damn, Se-mi has a girlfriend! She couldn't refuse?
Sure not, after all, Se-mi continued kissing Mi-na, sliding her hands over the other's body; something she only did with you. Everything got worse when Nam-gyu, another member of the group, suggested that they go to a ~~motel~~, And they went, holding hands and looking at each other... In love?
Se-mi hadn't broken up with you, but it felt like she had. She had admitted to dating Mi-na on social media, unlike you; she never admitted to you. She didn't reply to your messages and unfollowed you on Instagram. After that, it was hard to find her on the streets... because now, she was always traveling with Mi-na.
But you were going to move on.
Even though you hadn't officially broken up with Se-mi and hadn't seen her since that day, you told your friends that you weren't together anymore, since some thought that Mi-na was Se-mi's lover. It wasn't particularly a lie. After months of trying to forget her, a former player bumps into you on the streets, and then in your bed.
Cho Hyun-ju.
She treated you much better than Se-mi, as well as being stronger and more cautious. You assumed the relationship after 2 months together, even on social media. You were happy, enjoying each other's company... when one day, someone rang the doorbell.
Cho Hyun-ju was in the bedroom, making the bed after you guys made a mess in the room, so you went to open the door. Your cheerful mood disappeared when you saw Se-mi at your door, her face red as if she had just cried. Her eyes were empty, and a little guilty.
“Are you with Hyun-ju?” – Se-mi asked directly, the pain in her voice was noticeable. – “Did you cheat on me?”
Se-mi knew she was the one who made the mistake. She only backtracks when she realizes what she lost: You.