I am loving this kdrama! so good!! can't wait for next week, but I have exams that week :")BTW, how did Sejin…
i've been wondering that too and as i wondered i figured that it was probably bcz he's heard how both of them behaves and as he saw them together side by side and listened to them, it kinda clicked? he's a pretty perceptive guy. but what im more perplexed abt is how mirae didn't ask him how he knew