This drama takes #1 for me ???
others:
Healer (kdrama)
Angel Destiny (thai drama)
One Spring Night (kdrama)
Hwayugi (kdrama)
Vincenzo (kdrama)
Touch Your Heart (kdrama)
Secret Garden (kdrama)
Full House (the thai version. Although it's been too long I wtached, don't exactly remember for sure)
Her Private Life (kdrama)
Mostly I don't watch asian drama for their kisses, although they've upped their game from fish kisses etc. , and now there are good kisses, BUT STILL rarely do I feel actual heartflutter from kisses, Will Love In Spring is one of the very rare ones to bring the heat and heartflutters ?
For example the kdrama Marry My Husband has technically good kisses, but it doesn't make me feel anything, even though I shipped them, felt quite mild during their kisses. Same with Bo Ra Deborah! ? Lots of dramas nowadays are like this, where they don't do fish kissing, kiss technically well, but don't exactly make you giddy either....
Mostly I recommend Turkish dramas and Spanish langauge telenovelas for that, they tend to have very heated kissing in each drama ?(well Turkish drams depends a bit on censorship/what channel aired on).
Favorites w great kissing & chem:
Turkish ones:
Kara Para Ask / Black Money Love
Erkensi Kus / Early Bird
Kiralik Ask / Rental Love
Telenovelas:
Pasion de Gavilanes
Miss Adrenaline - a tale of twins