I Need Romance Season 3

Older woman, younger woman in both.
She is career oriented.
The main difference is Intern in my heart has fantasy.

Working in tv shop, Dating with younger man, friendships and many similarities ...

It has a love story with an older female lead and an younger male lead wo know each other since they were children. They have an sibling like friendship and too live together. This drama also has an love triangle and a slowly developing side love story.

Same scriptwriter (she has typical own "handwriting") and you will find Sung Joon in both shows. DoR can be INR4.

1. strong woman
2. younger man
3. noona romance
4. teleshipping, vendor themes
I suppose, QoR was source of inspiration for INR3.

Although different cast and stories are unrelated the dramas have a similar vibe.

When a man's ex suggests a three-person marriage with her boyfriend, the trio faces jealousy, social stigma and intimacy issues in their unique setup.

The similarity: Two unexpected people raise a child together.

Plot of I Need Romance Season 3: there are many couples in there. One couple is a noona and a hot young guy have "friday nights in a hotel" hot romance going on... and make a baby.

He moves next to her to be closer to her bc he likes her,...
He accidentally discovers she is pregnant...and totally not taking care of the baby ...
He initially refuses to do anything with the child... but somehow, on his own, he decides to try and discovers he likes it... he feels very concerned about the baby...
and after much persuasion, he talks her into joining the forces to raise the baby together ...
and they do .... successfully.
It is a GREAT rom com.

Similar themes of older woman/younger man, and in both the FL is struggling to get over a past/prior love.

Asada Minami, a nurse, Hiruma Toko, and Nishino Yu, a bookstore employee, all fall in love with Kita-kun, also known as Manaka Kita, who has a mysterious charm that captivates everyone regardless of age or gender. In order to avoid increasing their love rivals, they form the "33% Club" to share Kita-kun's love in three equal parts. It is a love comedy about three people living together with Kita-kun.

A hot love casual s.x couple makes a baby and becomes a pair loving each other and the baby

A great rom com

Ima is a single mother with a high school daughter. She has fallen in love again. The other person is Hisame, a graduate student about a decade younger than her. The two are attracted to each other, regardless of their age or circumstances. However, she already has a high school daughter and two other lovers. Ima, who does not feel jealous even if her partner has another lover, has taken the form of a "multiple love" with the consent and understanding of all involved, which is a free relationship but is definitely different from betrayal such as adultery or cheating.

Manami is a female student who hates her wealthy family because they are fake. She meets Jun, a wealthy gay man, in Kabuki-cho, Shinjuku. They go to a male host club together and begin to share a host guy called Seiya.

Similar plot ML is grown up with FL by freeloading at her house and later grown up with feelings toward her.

In both dramas the ML is younger than the FL. The FL at first sees him only as a boy and doesn't consider him as a possible male partner because of the age. The ML falls in love with her first and tries to make her love him back and see him as an adult.