This series has a lot of flaws, I hate the "harem" ending and I wish the author just continue to develop the original trio (Ju-Heon, Irine, Jaeha). Irine's personal development simply stop dead after Seol-Ah got back her memory... *sigh*
But despite everything, I still keep reading because I love Jaeha. He's such an imbalance character. He's supposed to play the "comic relief" role, but his own story is so sad and dark that some reader became angry at the way the team treats him, even though I think the author just want to write them as "funny moments". I think Jaeha is the only one has different personally compare to his past self and still keep it even after he got his memory back. Pretty sure he has some very serious mental health issue too.
It's such a shame that TRK has no fanbase, because I want nothing more than a chance to read some Jaeha centric fanfic...