Ep 4 theory after that shocking glimpse into Woo Hak's memory lane:
So we all have seen the ending of ep 4 which feels like it is meant to confuse the viewer thinking again if Woo Hak is indeed Ki Ho. He's not. Here's why and I'll be adding the Easter eggs left by writer for us to know the answer way ahead of reveal
1. Bo Geol is the main lead. Makes no sense if you're making a major character silent and invisible to this point unless he has a hidden character identity. He needs to have a strong past to be male lead. And his melodramatic eyes everytime on Mok Ha makes no sense otherwise either.
2. He doesn't support Ki Ho being identified in fact aggressively suggested not to find him as he'd not want to be found. Which again, doesn't make sense , as he's a stranger to him how does he conclude so ? If he doesn't then why not support this woman trying to find her friend? Unless...you are him.
3. He aggressively suggested that Woo Hak ain't him and they don't match personality and he's a different person than Ki Ho.? I mean ..does he know ? Also he heard only that There were flowers from Ki Ho and he knew , he just KNEW where to go?? Boy how?? For a guy who's silent most of the time u know a lot .
4. Woo Hak memories show him hiding in a house that's unfamiliar and not his house. He's hiding in a cabinet but the calling of father seems to come as a bit nervous and as if calling outside of the place Woo Hak is hiding. Very sus . It could be his mom's house Nd this little guy happens to be the other son for mom. Or in fact just adopted brother who was stuck in the house and this jerk dropped by to find his son.
Easter Eggs( I ain't adding those Melo eyes He gives that's a lot )
1. Baggy jeans, that's something we see in his silhouette, which Ki Ho was wearing similar to Bo Geol.
2. No specs. Again , bo goel isn't wearing any either but woo Hoo hak is
3. Woo hak vomits in sea Bo Geol is fine
4.he bought her shoes first time...
5. He was already there while she was singing That Night dedicated to Ki Ho. There was sadness in his eyes while listening to him
6. First morning in ep 2..Woo Hak was a heavy sleeper...Bo Geol seems to be light sleeper...guess who else is ..
I think this concludes it's Bo Geol. I'd say anything else would be misdirect.