Mareina

I didn't notice any accent when he's speaking Korean... (that is, other than the normal historical speech that everyone is using)

I think Hangul itself is pretty easy to learn. It's just 24 letters and a few rules on how to organize them, so you'll probably do just fine even on your own.
Spelling takes a bit of time though, because it sometimes feels arbitrary why a word is written in a certain way - but that's the same with every other language.

I remember someone in Tree with Deep Roots saying that "Hangul is designed so that a smart person can learn it within a day and a dumb person within a week" ;)

Yup, no z-sound in Korean^^ They use the j-sound instead per default

I loved Liar Game and always longed for a bit more romance between Nao&Shinichi - If it's a Korean version, they will probably have that, right?
That it's preproduced and on tvN also makes me feel pretty optimistic. Now, just let the casting be good!

Ep 2 sealed it: this is my fav currently airing show!

I really don't know why you keep equating things in dramas to real life stuff. Of course nobody likes their girl/boyfriend being stolen and I'm pretty sure that NOBODY here would approve of cheating.
I like revenge dramas for example, even though I'm against self-administered justice. I also enjoyed a few improper relatioship dramas (like student-teacher) although I in no way would promote such things in real life.
But I can still enjoy a drama that happens to have such things, because dramas are NOT real life.

Actually, it's Hanzo and not Hanjo, but Kanemaru is the only one who can pronounce it properly xD

I like it! Unlike other people, I feel great chemistry all around. The glances Sang Hyo and Hae Young send each other are sparkling already! Might be I'm a bit biased cause I also like all 3 main actors, but to me the acting seems just fine. So far I like our main characters and their interactions and am pretty invested in their future, enough to easily forgive the weird background mystery (though I still hope that get's a bit more interesting).

As far as I know it's 3 seasons with each 12 ep with the same actors. I don't know if there will be gaps (and how long) between the seasons, though.

because there will be 3 seasons

When the teacher was driving her home upon finding her at the hospital (after the wife delivered the baby). Young Eun slashed at her through the window with that cutter after she got off.
I was wondering about that, too...

I think they're a bit stiff at times, but not at all to the degree that annoys me or distracts me from the story. The drama doesn't demand too complex expressions anyway.
I don't think their acting will keep you from enjoying the show.

Loving this so far! It's crazy, hilarious and cute but doesn't lack poignancy and the abundance of references is awesome *__*

The discription is not very fitting. The relationships between the characters do develop, but this is more short episodes and talk about mature dating life instead of a proper drama. It's pretty funny and very frank, but there is a fair amount of skin, so be warned if you don't like that.

In case you might wanna know: she didn't/doesn't date Daniel.

Now that we're through with the backstory I actually like this show. It's funny and has a bunch of interesting characters - just Sadam is extremly one-note and boring. Any scene with Jung Il Woo is a treat though.

Kim Yoo Jung plays a novel writer who's tasked with investigating the palace mysteries.
I like her, so I'm happy she was cast (given she's really not romantically involved at all). What's wrong with child actresses this year, besides the high school love on controversy?

I don't see how Mi Young is supposed to know Gun's lying when he says he wants to break up. She knows about the returned memories, but her faith had been crushed several times at that point and Gun was being pretty cruel to her. On top of that, she'd been afraid that her happiness would shatter any moment all along, so Gun was saying what she'd been fearing all the time.
Also, she isn't technically running away with Daniel, but restarting her life after a serious setback. If they became a couple within those 3 years she struggled to cope with her losses and start afresh, I really don't think that makes her an "easy slut and whore".

As far as I know it's one extra episode and a special, so the story should end with ep 17.

There's actually a lot of cheating characters around in J-dramaland. Dousousei and Wakamonotachi have them, too, for instance, just to mention current dramas.