What's the one Kdrama you'll never stop recommending ?

I have a select few that I go around recommending with the energy of a MLM recruiter:

• It's Okay to Not Be Okay
• Flower of Evil
• 2521
• Search: WWW
• Signal
• Bridal Mask.

Some Historicals:

• Queen Seondeok

• Jewel in the Palace

• Bridal Mask

Romance:

• It's Okay That's Love

• Goong

• Coffee Prince

• I'm Sorry I Love You

• Secret Garden

• Secret Love

• Healer

• Pasta

Thriller:

• Signal

• The Guest

• Kingdom

• I Can Hear Your Voice

Slice of life:

• My Mister

• Reply 1988

• Move to Heaven

• Be Melodramatic

• Once Again

styx971:

Secret and kill me, heal me same main leads in both who have great chemistry in them together while both have solid plots.

This, definitely this!

And: Because This Is My First Life, Something In The Rain, Tunnel, Avengers Social Club and The Forbidden Marriage.

But if I have to choose one it will always be CLOY!