Both have the actress Yonekura Ryoko playing a person who tries to change the school system.

Both involve a young female chef and her enviroment as she strives to become better at her job.. both involve her competition with a male aspiring chef and the way that competition improves their life.

Both involve a narrow-minded aspiring female lead and her more gentle male counterpart (as both have the same profession).
Female leads have had dealt with harassment and the surrounding rumors about them and have become fierce.
It's about their work and home enviroment and the way they learn to adapt, allow people in.. and about their professional life with their colleagues.

Dramas about women and men in kitchen/restaurants. Both are favourite dramas that involve female chefs and their surroundings + their growt at professional level and how they manage to make the people surrounding them better humans trough cooking and competition.

The battles inside the companies of both series seems a bit similar.
Both male protagonists grown up from sleezballs to a somewhat righteous and reliable fighters for the justice within (and even gather employers around them.)
Both female protagonist are neiher too whiney, nor crybabies. Both are strong, yet atractive.
In both series the romance between the both main leads is lacking if it's even there.

Both main protagonists are somewhat violent.

Dramas depicting the love lives and work-related affairs between a woman, which raised herself in her carrer, but it's also known for her savage and bursting temperament & a meek and a not-so succesful man. In both the men struggle a lot under the women's leadership, but gain not only a lot of proffesional knowledge, but also learn to see their vulnerabilities and save them from the judgement of outsiders. In the end both start to compliment each other.

Both depicts the strugling of the modern office workers and try to take a look at them. Both include un-even couples within the same company.
While MT&NJG depicts a modern grown woman in a somewhat traditional society; 3 generations men of the same family and a struggling dad, trying to raise his children..
RO depicts 3 youngsters fighting for a job for which they are not quite capable of, a mother trying to break the glass ceiling and raise herself as a manager. Both have a protagonist that tries to break his prejudice and mistrust of others about himself, but first starts crushing his/her prejudice about others. Both have changed a lot of jobs, before landing amd finding his/her place finally in this one. In both their partner has a calmer temper, but is not a complete push-over as it raises himself/herself into a fighter of some sort.

Main couples in both live neirby to one another and somewhat run to each other even outside work. They grow to like one another- as they start to understand better the problems of the other.

Both involve a man and a woman having the same profession. While the man is considerate "elite" in his, the woman is struggling heavilly both for recognition and with money.

The leading men in both shows are so confident in their abilities and worth that doesn't realise their unfairness to others as it mostly doesn't came with a bad feeling, but is with a rather sharp tongue and judgement. Both consider themself elites. Both are somewhat abusive towards the female lead. Female lead in both is being considerate by them below their level and is a crybaby with a lot of troubles.

Both are recent office dramas which involve a somewhat unbelievable situations for examples of the struggles of the employers of the companies and have comedic aspects.

Both are office dramas, starring Ha Suk Jin in which he plays a somewhat despicable man (he is a better human in RO), while the female worker is honest and desperate by default (more desperate in DS)..

Both involve a female office worker who thinks she has a terminal illness and therefor start changing her attitude from a meek to a much more fighting one.. which starts changing her life.