I have seen only 2 or 3 episodes of "Introverted Boss", but the FL character was so bad, I had to drop it.

My Horrible Boss is a great choice, I was happy to see Lee Yo-won again and it was a good character. It's always fun to see Yoon Sang-hyun also (he'll always be Oska to me, even though I didn't like Secret Garden that much).

My Horrible Boss is so underrated.

I tend to think of Introverted Boss as being more of the 'failing to live up to its potential' kind of drama.

I missed the 5. The Matchmakers

Recipe for Farewell for sure. It's such a gem.

I wanna watch One Day Off so bad!!!

I didn't think VIP was underrated, I spent the whole drama wondering why such wonderful women fell for the most boring man...

I had the same question when reading the prompt.
And I think I also need some examples of the 2 types mentioned below too, since it is confusing to me.

There are those dramas that are good and everyone knows it. Then there are those dramas that are hidden gems and word of mouth also leads everyone to know it.

It pains me that it was the case but…
LFIS was cherished, still missed and much discussed by those of us who fervently loved it as well as recommended by those of us who watched it but objectively - for what it’s worth - based on the few(er) comments, it could be interpreted as fitting missvictrix’s prompt. We were a small but mighty band but looking at the numbers of popular DB posts (albeit in some of these current ones, one/few commenters might make the majority of the gushing comments), the LFIS looked like it couldn’t compete. But we knew better. It will always live in our memory and for as long as it is streamed, we can be reminded again why we loved it so much.
Now, why wasn’t it embraced by the Korean viewers even if more knowledgeable Beanies commented that for the ENA, the numbers were not catastrophic? Why, why, why? I would love to read a longform article on this.

On the Verge of Insanity is certainly underrated in Korea and in DB.

Agree with Through the Darkness, She Would Never Know and On the Verge of Insanity!

Children of Nobody was so bloody good.

I loved Children of Nobody and My Unfamiliar Family. Through the Darkness is very good too.

On the verge of insanity and My unfamiliar family were both very good.

On the Verge of Insanity for me is the quintessential drama for this list. It's so good and so unremarked.

Children of Nobody, yes, but a lot of people would be put off by the subject matter. Nobody Knows also was so good and so underrated.

Through the Darkness was another gem I wouldn't have discovered if it wasn't for Beanies.

I love Children of Nobody!! I don't hear it get talked about as much however even on DB (lots more about Tunnel and Signal and Forest of Secrets, also all great).

I also remember feeling like "sell your haunted house" was a solid drama without much buzz

SELL YOUR HAUNTED HOUSE is AWESOME!

Jang Nara unni nails the role through the through!

I'm glad to see that Verge is getting some love.

Some of the great K-dramas (Misaeng; My Ajussi; Hot Stove League...) feature a professional just being a professional despite the chaos of a toxic workplace. This is one of them.

Jung Jae-Young is an unlikely leading man to set against a Nam Goong Min, Lee Sun-Kyun, or even Lee Sung-Min - which is possibly why the show is underrated - but as the unassuming engineer/hero, he's excellent.

MUF and SYHH are very good shows.

Children of Nobody was a great drama. That music that played at the end of most episodes was so haunting. It was such a powerful but equally sad drama.

I've heard really good things about this one - I need to check it out.

Sadly, "Haechi" got sandwiched between "Crowned Clown" and "Nokdu Flower."

The package was great as everyone in the group including the tour guide had a story to tell.

The Package is so good!

Fake it till you make it has several fans here in Dramabeans. It's a gem. Outside here, all my friends who watched it because of my recommendation really loved it.

As a JYH fan, I think I should try watching The Package again. It didn’t click with me in my first watching so I dropped it pretty fast.

Thank you for mentioning these. I wish I could find them but alas. So many bad dramas are easily accessible but I cannot legally access many that are recommended. Sigh.

Liar Game was SO good, I've been hoping for a long time for season 2.

I loved Beautiful World. I feel like Solomon's Purjury is more well known, but I loved Beautiful World more.

I also look at Beans’ recommendations, but I mean Beans that kind of share similar preference in Kdramas with me.

I watched the first episode of 365 and liked it. Now I am motivated to finish the drama. I started Room No. 9 right before Dramafever's demise, and never finished it. Is it still available and where?

I want to watch room no 9!

Also I loved 365 Repeat the Year I felt like it was genuinely just so twisty and good

Accidental couple was funny and meaningful. A case study can be done on "human behaviour and treatment of others" based on the ML's character. He was the best!

It's just Rowoon himself. He's magic :)

I think you make a good point about Tomorrow. Granted, I haven't seen the show in its entirety but from what I've seen and what I know of it, it seems it was a good project with good acting (for the most part) but the subject matter made people uncomfortable/sad, etc

I actually really liked Tomorrow, so I was also surprised that it didn't have a better reception on DB. It's a quiet love of mine^^

I never thought Tomorrow was an underrated show.
Maybe because I have noticed it is highly rated in My Drama List (my main source of information after Dramabeans).

Agree on Tomorrow. When Destined with you end, I watched other Rowoon older drama and I must say, Tomorrow is really underrated. I even like it than the more famous The King's Affection.

18 Again was truly a gem. LDH was the best...amazing chemistry with the FL

I just finished watching it for the first time. I saw the movie years ago and thought the drama was absolutely lovely.

Where can I watch it in the US?

I LOVED 18 Again. The story was so compellingly real despite its fantasy backdrop. Lee Do-hyun was jaw-droppingly good when you consider the character he was playing at a time when the actor himself was only 25 years old. My heart was wrung out many times during this series. Truly an underrated drama.

Looovveeeee Lee Do-hyun in 18 Again. That drama is a gem.

oh, just saw Bubble Gum mentioned and that reminds me Lee Dong-wook has been in a few others that I liked or at least found interesting but not exactly hits: Wild Romance, Blade Man
and Partner

The Queen's Classroom is another awesome one that slipped under the radar when it first aired.

Agree about 49 days, the queen's classroom and memory and I LOVED smile you. Jung Kyung ho and Lee min jung's chemistry is on fire and the ost is perfect.
But about triple I watched it recently and and I didn't like. Maybe it was good at the time, but not in today's standards. Some characters are so toxic, but their actions are shown to be romantic.

Agreed the ratings were so low but those who loved it were loyal followers.

Ditto this. It’s like how can you not try such a show when appeared out of nowhere? It’s just a work of art. It goes beyond being an excellent drama for me. It’s such a well thought out, well acted, and an overall exquisite show it transcends the boundaries.

It is a very honest show. Try it and you’ll know what I mean.

And Lostpanda, I’m happy to know you like it. It grabbed my soul and hugged it tightly, too.

Tell Me That You Love Me scored audience share of under 3% (wikipedia). I am in episode 5 and love Jung Woo-sung's slow, quiet portrayal of a man with hearing loss who resists personal relationships. I've never seen a film that IMO so beautifully choreographs sign language into an art form.

12, not 1w

I'm still angry at TVN!

The trauma, the trauma!

I need to watch A Piece Of Your Mind to help me deal with the loss of four episodes of A Piece Of Your Mind

This one has been on my watchlist. I'll prioritize as my next teen-drama watch.

Agreed this is a great teen drama covering some serious issues for both the teens and the teachers.

Navillera and Girls Generation 1979 are so good!

I liked Race a lot too. The ending was rather silly, but it didn't ruin the show.

Wait, I remember "Avengers social club" had good ratings in SK, but I don't know why it was never picked up by DB.

Nevillera is also underrated imo. The acting of the protagonist (the old male alone) deserved recognition.

Thank you for mentioning Birthcare center! I love it, very funny and centered around women's experiences of childbirth and motherhood.

Diary of Prosecutor was a lovely little slice of life drama

Underated fantasy romcom: Perfume

Drama had heart in abundance. Don't be dithered by the early eps, it gets better. Min Ye Rin and Min Jae Hee's journey was the show and was satisfying to see.