Aramintai

Just an educated guess. The more kdramas you watch, the better you can predict how it's gonna go...

So basically, Ki Ho is Kang Bo Geol. He has found his real mother in Seoul, but stays quiet for now for some reason.
His brother is likely the adopted one, he has abandonment issues and identity issues because of his amnesia trauma. And after hearing FL's story he has started seeing similarities in everything and having a case of mistaken personality, thinking himself as Ki Ho. It doesn't help that part of the similarities are related to his new family and are true, but concern his mother and brother.
One viewer below rightfully referenced What's Wrong With Secretary Kim? - same thing happened to brothers in that drama as well. The bad things happened to ML, but his brother associated everything to himself because of his severe mental trauma due to extreme guilty conscience. And ML stayed quiet there as well, getting abused for nothing by his confused brother.

EDIT: To add more credence to this theory, a viewer above called out the fact that Ki Ho was in the Navy military at some point (probably obligatory military service) and it was Bo Geol who regularly went to various islands for trash collecting volunteering. His brother, on the other hand, has sea sickness and only tagged along with his brother for the first time.

Why not?

Kang Bo Geol is Ki Ho 100%. The brother has misplaced identity syndrome.
Also, if they go the tropey way it's gonna be a love triangle between FL and two brothers.

Btw, child version of Ki Ho was played by the child actor who played child version of ML there. How fast they grow...

The editor one, Kang Bo Geol. But that's just my guess.

But she's not an athlete. And I don't think this is a good enough of a headcanon.

More like they're on drugs.

🤣 I wouldn't be surprised if that happens.

Two main male characters have the same surname. Probably not a coincidence.

Probably not gonna happen. But they may use a common misplaced identity trope to make FL confuse him with his brother (?).

Kinda hard to believe that FL won't be found for 15 years. I mean, she couldn't have landed on an island too far away from the mainland. There are tons of fishing boats going around those southern islands. And search party would have likely combed all the surrounded islands.

Also, big survivability questions. And monthly female hygiene questions. They probably not gonna delve into these uncomfortable ones, my guess.

It's cool that they've found a good teenager actress that looks similar to PEB. I prefer child actors to adult actors playing school students. Usually it looks very weird with adults, still remember that one from recent Behind Your Touch where they put 35+ actresses into school uniform.

I'm having the same question.

I'm not seeing Ki Ho's adult version in cast 🤔

It looks like a good one. Let's see how it goes.

Eh, I'm dropping this. Unlikable childish FL (her mother feels like the real heroine of this drama), lots of filler, forced villains and story is all over the place - drugs, police work, family drama, moonlighting as gumshoes, useless ex-hobos side story, grandma looking for a new grandpa, weak ass male family members being forced to do something about their life, etc.

Is that a Korean take on John Woo's Face/Off?

Does anybody else has a feeling that the mother is the real FL when she's on screen? Way more interesting character and most of the things going on feel like it's about her.

Also, FL acting here like a child with genki archetype really got old fast. Dumb, but bright characters really not my cup of tea. Also, how dumb can you be to not remember the honorifics already? If she's watched kdramas so much why hadn't she learned from them if her teacher was idiot as well (some grandma that lived 50! years in Korea)?

This drama has solidified my disdain for reincarnation & destiny plots. They're all copying each other, boring and send a wrong message with their idealized, unrealistic view on love.