Both the movie and the special holds the element of Love appearing where least expected to. They both also touch by real-life elements like diseases and inferiority complexes. Both are Beautiful Love Stories as they both have the avability to bring tears to your eyes.
If you liked one, You'll surely like the other.
> Same main leads.
> Boy hides his real identity in HMS— boy hides his real sexuality in HBL.
> Both dramas have a period of parting between the main leads.
> Both dramas have a good ending.
In both, the main lead mistakes the other for being gay. In Heartbeat Love, the female lead mistakes the male lead. In Down with Love, the male lead mistakes the female lead.
In both, the main female lead mistakes the male lead for being gay.
Both have a male lead who really cares for the lead girl. Have same sort of humour and both leads in both dramas have great chemistry. Also Rainie Yang stars in both dramas.
Miyu and Shuya are high school students. They have dated for 2 years. Miyu and Shuya have a promise that no matter what, they will watch a movie together on the first day of each new month. When Miyu and Shuya are on their way to the movie theater, Shuya suddenly cancels their date. Shuya seems like he is hiding something and he acts nervous. Later, Miyu goes to the place where she is supposed to meet Shuya, but she witnesses Shuya getting into a car accident. She panics, but when she wakes up she finds herself on the morning of the accident. Miyu keeps waking up on the day when Shuya got into an accident.