O Rei do Ensino Médio (2014)

Both involve the relationship between a career woman and a high school student. High School King of Savvy is more lighthearted than I Hear Your Voice.

- doppelganger identity switch as both are twins and the high school twin has to impersonate like the other one
- comedy, drama so it's a one time watch

Almost the exact same premise, except the ML's older brother doesn't assume his younger brother (high schooler's) identity in High School King of Savvy.

Seo In Guk is also lead actor here. Min Suk's brother is somewhat resembles Hyun character.. If you find SIG in HSKS as cute, more expressive in love and immature, in IRY, he is totally hot, genius and cool.

both involve Twins, the younger sibling replaces the the older siblings position in High School King of Savvy.

In Your Honor the younger twin ends up working in place of older twin "accidentally".

both will make you laugh, and cry.

There are ton of differences in plot between these shows, but Both are noona romances with a couple that is accidentally paired up due to circumstances. Through working with each other, they become friends and eventually lovers.

Both are office love.. director and secretary love.. both dramas have two directors who love same secretary..

both female lead fall in love with a high school student. something similar...for me.. try to watch both drama..

Similarities: The fluffy romance and and adult is dating a high schooler in both...
Though the other things are quite difficult, because of that while I was watching HSKoS, I was reminded of TLaHL.

Seo In Guk is great in both HIGH SCHOOL KING OF SAVVY and REPLY 1994. Both portray: young adults from nontraditional households, where one or both parents are missing and they are supported by a sibling or friend of the family. Both include One sided love, and Romance.

Both drama contain office love.
Also got emotional confused.
Love rivals are also have close relationship with main lead.

The main similarity between both dramas is the main characters pretending to be someone they're not. In Angry Mom, a mom pretends to be a high-school student to protect her daughter. In High School King of Savvy is about a high-schooler pretending to be a successful CO.
Warning: Angry Mom is surprisingly a very serious story that doesn't shy away from bullying and child abuse. High School King of Savvy is a goofy comedy that is very weird but has a lot of charm with its characters... The atmosphere is very different but both stories do have a similar theme with the main characters.

Both dramas show you how things work in a company, how to be an employee, the envy between the colegues, etc. It also ilustrates the story of a new employee who struggles to survive in company. But while Incomplete Life tends to be more serious, High School King of Savvy has a lot of comedy and is more on the romance side.

Both female character is older and both story delighted by fresh and funny spices. The male main character on High School King Of Savvy is just like Oh Hae Young who would do everything for his love. But High School King Of Savvy is more unrealistic and more naive.

I really really really recommend this drama for those who'd love to see a male character fighting for an impossible love. His positive attitude towards anything gives you hope in your own problem :")

Both involve one of the leads leading a double life, in this case its the heroine.
Based on the characters in school
Two guys fall for her, one for each of her roles
Cute!