Recommendations

Both these dramas begin in the same way. The main male character falls in love with a simple girl, who is the heir to his business empire. Difference between rich and poor. The boy's family does not accept the girl. But the boy always stands with her.

Both feature a human FL who ends up living with the supernatural ML after she accidentally kisses him, swallowing his magical stone/bead.

Human/supernatural being with water related powers romances.

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Both dramas have "fish out of water" leads with water-related abilities/worlds who come on land to find their true love. The human they attach themselves to reject them at first but are forced to live with them and teach them about the world, only to fall in love.

Both dramas have a human FL who ends up "housing" the pearl/stone of the supernatural ML. While the ML tries to figure out how to get it back, the two end up living together.

Both are mini dramas with a human FL and a "fish out of water" supernatural ML connected to water who end up living together while ML tries to return home only for the two to fall in love.

Both dramas feature an alien ML trying to return home and a human FL with a connection to the entertainment industry.

Both are mini-dramas with an alien ML and a human FL with a connection to the entertainment industry. The two end up co-habitating.

Both are short length stories with an alien ML trying to return home and human FL with a connection to the entertainment industry.

Both are lighter fantasy dramas featuring a human FL in the entertainment industry and a supernatural ML with powers.

Seok Won was found murdered at home. The suspect is his daughter Yoo Jin. Her mother Ja Yeong struggles to get Yoo Jin free and not guilty. The two of them live a normal everyday life but they’re both traumatized. Then one day, Ja Yeong meets Dong Ha and opens up to him.

Eun Mo is back in her hometown, Paju after spending three years of soul searching in India. However, the reality she returns to is far from comforting as she is faced with a dreaded reunion with her widower brother-in-law, Joong Shik. Almost a decade ago when Joong Shik came to Paju as a student activist fugitive, Eun Mo never took a liking to Joong Shik who ended up marrying her older sister, Eun Soo. But she was forced to live with him when a tragic accident took her sister’s life. During a course of three years, Eun Mo gradually discovered she was carrying complex emotions toward Joong Shik. Having felt trapped, she decided to leave Paju. Eun Mo believed she had resolved all emotional conflicts in India, but as she digs further into her sister’s death, she becomes torn between the truth and her feelings for Joong Shik.

Similarities:
- Both dramas are bout the journey of a start-up company that aims to better the lives of those in need
- Both dramas include a love line between the main characters who are colleagues and business partners in the start-up
- In both dramas FL is inexperienced in technology but she is headstrong and passionate about helping and making a difference; and both FLs maintain leader positions in their start-ups
- In both dramas the start-up company is attempting to become successful through a competition; in Start-Up they are participating in a Sandbox event, and in Unicorn ni Notte they are participating in a competitive event held by Cyber Mobile (CEO Haneda Sachi) called the Unicorn Creation Project.
Differences:
- Since Unicorn ni Notte has just started, I can't say much about differences except that in Unicorn ni Notte they are also addressing the issue of age-knowledge gap in the workplace, where one of the new employees in Dream Pony (name of the start-up) is a middle aged man with little knowledge of technology. Although he has been in the economic workfield for a long time, he has little experience with technology and thus is a disadvantageous asset to many companies who adopt technology in their work. Despite this, he is a seasoned worker and passionate about learning more about technology. In Unicorn ni Notte we will likely also see his development and relationship with the FL, ML, and rest of the Dream Pony team.

Both have transmigration into a book. Not have romance. Idk what else since different princess hasn’t aired.

The thing I find similar in both dramas is actually the ending.
I would spoil the twist now:

[/spoiler]One of the two girls whom are friends in the drama is actually seeing a therapists and some of the events happening... Are not real.[spoiler]