Itaewon Class (2020)

Kiki Inoue works part-time at a convenience store, spending the better part of her day lazing about or reviewing sweets on her social media account. One day at work, she is introduced to the chain’s CEO, Takumi Asaba, who, as it turns out, is familiar with Inoue’s online reviews. Asaba asks Inoue to develop new desserts to sell chain-wide. As CEO, Asaba is tasked with turning around the chain’s fortunes, as it is now ranked the lowest among its competitors. Close collaboration leads Inoue and Asaba to become sweet on each other.

Similar David & Goliath story were an unassuming character tries to take down one of the biggest conglomerates in Korea for the purpose of revenge. Interestingly both dramas mention the autobiography of the conglomerate chairman which is a key plot device.

29-year-old Hyuga Toru is a wealthy man. He first started to run an internet website from his small room and his hobby began to make a lot of money. Nowadays, he doesn't like to socialize and if somebody comes to him he suspects that they may want his money. Sawaki Chihiro attends a job fair and by an unexpected occurrence begins to work for Toru. Chihiro soon realizes that Toru isn't so bad. There's pureness in him and also a good deal of loneliness. She then begins to have feelings for him

in both, there is a nice man who cherish his friends. also they start a business by opening an office/pub and fight against a powerfull company.

29-year-old Hyuga Toru is a wealthy man. He first started to run an internet website from his small room and his hobby began to make a lot of money. Nowadays, he doesn't like to socialize and if somebody comes to him he suspects that they may want his money. Sawaki Chihiro attends a job fair and by an unexpected occurrence begins to work for Toru. Chihiro soon realizes that Toru isn't so bad. There's pureness in him and also a good deal of loneliness. She then begins to have feelings for him

Ki Sun Gyeom is a sprinter on the national team who was forced to quit due to legal issues. Oh Mi Joo writes translated subtitles for movies. She was thrilled to see her name listed among the credits when she first started. Ki Sun Gyeom had just quit sprinting when he encountered Oh Mi Joo, who felt that destiny most certainly brought them together. Seo Dan Ah is the CEO of a sports agency and rightful successor to the Seomyung Group. Despite this, she is held back from advancing in the company due to her gender. She fiercely wishes to reclaim what is rightfully hers and lives her life accordingly. Lee Young Hwa, a university art major who enjoys movies and drawing soon enters her life. Could romance be in the cards for these two couples?

They also try to fight hardships with their restaurant or pub, and the vibe was similar.
I know the cast in this is more young, inexperienced and this one seemed less mature, it could be great for those who are searching for something similar.

The relationship is from hate to love and the friendship is great as well. Although it can't beat Itaewon class for me, it is similar in many ways, has a nice ost as well and I think the actors did a good job. This one is more relaxing :)

Two boys and one girl from the same class. One boy goes through something traumatic leading to the revenge plot. Both boys also like the same girl.

Both have a main lead who suffered from someone who is in a high position. Both male leads are very similar to their character. Both wish to get revenge and both make it by planing a very long time.
Generally both drama have a pretty similar story, however the biggest difference is the morales the main leads have.

Both have tough and assertive female leads whose actions you don't always approve of. If you liked the morally gray Jo Yi Seo from Itaewon Class, you'll love the focus on the FL in Here's My Plan.

Both are relatively light-hearted dramas that discuss serious topics and social issues. Both involve characters getting second chances and forming a found family. The MLs are kind but want revenge while the FLs are not as emotional. Both teams base themselves at restaurants.

Both involve a revenge plot based on an injustice in their youth (involving their fathers) and a slow but steady process to reach their goals. Food and business competition. Corruption: those with money are above the law, while the poor end up receiving the punishments of those in power.

I mean beside the plot, the actors got the same haircut lol. I find it similar to each other as rival is same in age and more powerful than the protagonist.

I believe it's similar because in both the dramas, people from different backgrounds come together to find happiness.

Never giving up.
You will see in this both dramas. That the characters do they best to learn and get motivated and reach they dream.
Navillera and Itaewon Class will say to believe in yourself