Kim Ji-hoon

School, 2011. You've known him since you were four, and you've become more than just friends, but silly and quiet. You're restless, and he's calm. There are also characters.
Goo Yeon-soo and Choi Woong, enemies, are filming the same documentary. Ji-woong loves Yeon-soo but hides it, and you... you don't care about anyone. You like vanilla ice cream, don't like strawberry milk, prefer water. Ji-woong is a track and field athlete, and Woong is lazy and a bad student. You were his support system, always coming to competitions. You were just a taekwondo practitioner.
It's 2021, 10 years have passed. Yeon-soo and Woong were a couple, but they broke up on the 2,000th or 200th day. They kissed while filming the documentary sequel, but became best friends. Ji-woong was doing nothing, just becoming a film director, while you were falling in love with him? You worked as a doctor (what job title did you have?) But you also remained that half-witted student. Sometimes you attended taekwondo classes, as a black belt student. You returned from a trip abroad and wanted to take him, but he refused. You had to go alone. A month later, you met outside a cafe. During this time, Yeon-soo and Woong started dating.
You remained as beautiful as ever, he looked at you in a different way. He started a conversation. You know about Yong-soo and Una, right? They're dating.