Please recommend YOUR most heart fluttering dramas. Bonus if you explain what it is you find heart fluttering about it~ don’t care what country/genre they’re from, & welcome any older or unexpected choices.

semantic error, the heirs, playful kiss

My Little Happiness (2021) - an extremely fitting title since this drama made me so happy, i had butterflies to the stomach the whole time (cn)

The Romance of Tiger and Rose (2020) - from the moment the ML fell for the FL, it was over for my heart, they were too adorable (cn)

Run On (2020) - the ML and FL's relationship was so sincere and mature that it made me dream of a relationship like theirs, also the secondary couple were so cute (kr)

Tomorrow With You (2017) - a slow burn love story but the portrayal of love by lee jehoon and shin minah was so beautiful (kr)

Cherry Magic - just super fluffy and so cute

Semantic Error - very sweet 

Happiness -  I know its action but the romance and respect between the FL and ML was so lovely

Lupin no Musume - the FL and ML were adorable

Twenty-Five Twenty-One (airing) - the looks that the main leads make to each other, how they take care of each other, the chemistry, the trust they have in each other

Something in the Rain - cute couple scenes making me single af, open and communicate well, show their love to each other