Does it have to be just one?
K-Drama :
1. Sweet 18 - haha, this might be weird, but I loved the scenes where Kwon Hyuk Joon starts realizing that he has feelings for his wife Yoon Jung Sook - especially the kidnapping where he told her he loved her and their first night together.
2. You're Beautiful - all the sweet moments between Tae Kyung and Go Mi Nyu. Especially the kiss after the movies.
K-Movie :
haven't watched that many movies, so I can't say.
T-Drama :
1. They Kiss Again - the last episode where Zhu Shu finds Xiang Qin in his office
2. Devil Beside You - the morning after their first night together was so sweet!
3. Down With Love - when Yang Guo found out the "red cabinet of secrets" after saying goodbye to Yu Ting and Yu Fei at the airport and Yu Ping almost kissed her. Also, the scene in the car when Yang Guo agreed to date Yu Ping was so funny ans sweet (especially when he knocked her on the head). Also the scene where Yu Ping told her about the "restricted category" and what to do with only your actual boyfriend and not the fake one.
4. Momo Love - at the train station when Sha Ling sat behind Tao Hua and she apologized to him was my favourite moment
J-Drama :
1. Ikemen Desu Ne - the last episode where Mio and Ren reunite at A.N.Jell's concert. Also, I love every moment between them.
J-Movie :
1. Nodame Cantabile Europe Special - the "bridge" moment between Nodame and Shinichi where she yelled at him that he wanted to leave her again, then the kiss in the garden at the castle where she had her first recital.