Sweet Revenge

Both have similar plots just in DN, its a guy who gets hold the death note and uses it to punish criminals. As you can see its much darker than SR. In sweet revenge, main girl receives a not that gets revenge on the person's name written in it.

Both have a main girl and are in high school and have a fantasy side.
Th drama treat many students cases too but Revenge Note is way more light and cute than Nightmare Teacher

Both stories:
* are short and sweet
* have fantasy elements to aid the female lead
* have a pretty male lead and a plain female lead
* have a love triangle

The settings are different, one is in the workplace, the other is in high school.
But the plots are all about the female lead using a mysterious APP to help her colleagues/classmates and herself, falling in love with the male lead in the process.
These dramas have very little 'drama', they are really light, short and funny to watch~

similarities
- Same concept
- Love triangle
- Unrequited love
- Dealing with similar issues (e.g bullying beauty, etc.)

=Same female lead
=High School/Teen
=Talks about similar themes (bullying, peer pressure)
=Sweet romance

?Strong second lead
?Family around leads

Same actress is main character Ho Goo-hee, a sweet, quiet girl. But she have good hair cut here.

Both shows perfectly capture the lighthearted, Fun, comedic and main protagonist is naturally cute.

Bith series she have secret. Here secretly the user of a mysterious mobile app that allows her to grant wish to take revange on school bullies just by typing their names.

surrounds her with the school's most popular boy (played by Lomon), her protective brother, and a famous idol (played by Astro's Cha Eun-woo).

- Both has the same revenge theme on its story and is set in school although Sweet Revenge is a full series drama while A Beauty of Revenge is a mini web drama series.
- Both has wonderful, talented and gorgeous casts.