s01e20 — Episode 20

I'm tired of uncertainty, I love you, I don't love you, I will, I won't.I can't understand the main character at all. She suffered, wept, and swore her love to Jun San, and then she just left to study, no matter what happened to him. Well, it's understandable why he told her so many things at parting. And after all, she just showed up at his house 3 years later.
Sang Hyuk started to get seriously annoyed when he found out that they weren't brother and sister, but even he was a good kid, he realized that it wasn't the right thing to do with Jun San. He's grown up in my eyes.
There's no way to justify what Joon San's mother did. Common sense is completely absent.
Thank you, at least we made a happy ending.