When Oh Misun first time saw Kim Jongin, she had felt something different from him. Jongin was too dark for her tender  world,  he was too risky for her safe circle. Yet, he was too enrapture to resist.

When Jongin saw  Oh Misun for the first time, she was nothing but a nosey-parker. She kept following him from the first day she attended his class.

But why when Misun entered  his world she felt that place was what she looking for this whole time?

And since when did Jongin started to felt Misun was something that complement his life?