Mini drama ? (Or small dramas)

I've been watching Ma Boy lately & right now I'm finishing Adolescent Medley and liked the idea of a mini dramas like these one. 

I was wondering if there was any others mini dramas you knew, or just a small dramas, like 12 episode or less. 

I'm fine with anything, it just need some romance into it.

Oh and I'm fine with any language, it doesn't have to be korean.

Thanks you x)

Be Arrogant
Exo Next Door (though there are 16 episodes but they're barely 15 min)
Dream Knight
Momo
Love Cells
After School: Lucky or not
Another Parting
Secret Love
Aftermath
We Broke Up
Dr. Ian

Thanks you very much guys ! There's some pretty good recommendation here. I probably will start with Twenty years old seems it seems the most interesting for me then watch the rest. Thanks again !

Sirius

I've only watched one mini drama that I liked so far which is "Never Give Up, Dodo" it's a Chinese web/mini series and it  was so much fun to watch despite its ridiculousness :)

If you're fine with any language, you should watch japanese dramas. They nearly always have about 10 episodes.
I can recommand some I rated 9 or 10.

Police / mystery genre :
- Guilty Akuma to Keiyakushita Onna
- Remote
- One Missed Call
- You're under arrest

Romance :
- Kekkon Dekinai Otoko
- Kimi wa Petto

School :
- Glass Mask
- GTO (1998)

Oh, I also remember 2 korean web dramas. Short episodes but well-done. The first one is Aftermath, I found the videos on youtube. The second one is After School :  Lucky or Not. But I don"t remember where I found it.

I have already watched many mini dramas and one or two episodes specials.
Can someone recommend new ones?

Monstar 
High End Crush
Goho's Starry Night (This and High End Crush have over 12 episodes, but the length of the episodes are about 15 mins)
Page Turner (This one is AMAZING! Although it's not full on romance, it has a romantic subtext and tension between the characters)
Thumping Spike (Also has over 12 episodes, but is short in length)
Bong Soon - a Cyborg in Love