- Both main leads have a hidden masked hero identity
- Both female leads like this main lead's masked identity

1. Most main and supporting casts in Stand by Me is from Love and Redemption such as Stand by Me's Cheng Yi, Zhang Yuxi, Mickey He, Yang Xi Zi, Fu Fang Jun, He Zhong Hua, Bai Shu, Ethan Yao, Li Jun Yi, and more.
2. Both female leads start out with a more naive/singular mindset
3. Both main characters in both dramas have some sort of hidden feud between the two
4. Mickey He plays Cheng Yi's father/godfather
5. Male leads in both are seen as "evil"
6. Male leads get smitten by the female lead

I have yet to watch this one however, the storyline gave me a similar feel to Mask. While the premises of the two stories are different. The main similarity is that there's a scheme of replacing the life of a person who looks very similar to them. If you like these kinds of drama, you may want to check out Mask. These two dramas have both suspense and romance tags in them.

The female lead in "About Time" has the ability to see people's time clock and how long they have left to live.

Both dramas contain a "fake siblings" storyline with the main leads that eventually turn into love.

Both of the movies are about a geeky IT employee who likes their pretty co-worker. They both don't have the courage to confess to the woman, so they admire her from afar. On a trip, both women lose their memory, and the geeky IT male lead has the chance to pretend to be the girl's boyfriend for the time being.