Recommendations

Similarities:
1. Language barrier for participants of the show
2. Cooking

Differences:
Unexpected Business - a grocery store as well as a small restaurant
Yoon's Kitchen - only a restaurant

Overall, both shows are very cute and fun.

Eun Soo is a pure but unsophisticated woman who runs a small resort inn with her father. Eun Soo is just an ordinary girl, but her life changes when she meets a man who's completely lost his memory. She takes him in and cares for him, and even gives him a name: "Baek Chang Ho". Love blossoms, and soon wedding bells can be heard.
But on the night of their wedding ceremony, Eun Soo's father passes away. And soon after, Chang Ho disappears too! In the blink of an eye, the two people Eun Soo loves most in the world have left her. But Chang Ho had his reasons for disappearing: his real name is Kang Hyun Woo, and he's heir to a large conglomerate. Even more, someone is plotting to kill him.

In his Chinese film, "Scent," Park Shi Hoo plays Kang In Joon, a Korean interior designer...who finds love when he meets an innocent Chinese girl...it's directed by Jessy Tseng who directed award-winning art house film Big Blue Lake.

The male leads are both being surrounded by spirits. But also their differences make both series unique. "7 Days Before Valentine" surrounds Sunshine who needs to understand that the world doesn't revolve around him rather to understand who we are and what our purpose is, while at the same time knowing others and understanding them as well. In "The Whisperer", the male lead Khun has always been told that he's crazy and only does "bad things". However, he won't seek revenge towards those to have lied to him, rather show them what "crazy" really is.

As reading from the synopsis, we get to know the main aspect of the drama is surrounding ghosts. Hotel del Luna is precursor of precision in drama of showing how exactly a generation long curse of guiding ghosts exists.
I dont even need to explain. We all thought of this drama when we read the summary.

Both explore how evil spirits and evil within oneself can lead to humans attacking each other.
Uncanny Counter is a bit more light and cartoonish in delivery while Hellbound is set up more like a dystopian alternate universe.

both are about starting a business from scratch and making it big . both leads start their business against huge odds and they fight and remain hopeful in the bleakest of situations

In the two dramas there are some things that are similar, like in both dramas there are twins, there is enemies-to-lovers trope, there are grandparents against the main couple love, and in both dramas the love of the two couple is not smooth, but there are some complication.

both male leads are green flags!!
both dramas don't have much misunderstanding
both dramas have a healthy main relationship
both male leads are smart and calm
love at first sight in both dramas (Instant attraction)
both are 30 episodes long
both have supportive teammate characters that make the scenes funny and interesting.

Cinematically beautiful, exceptionally well made, complicated enemies to lovers trope, clubs, underground, mafia, dubious concent, usage of illegal substances.

Another noona romance where Noona needs no saving. Black humor abounds as well. Mystery plot in both.

Both dramas begin with the FL dying, then finding herself alive and back in the past, using her knowledge of what will happen to change her fate.

Both dramas begin with the FL dying, then finding herself alive and back in the past, using her knowledge of what will happen to change her fate.

What can a person do for survival? Others may not know, but Mei Lin is willing to sacrifice everything, including her body and dignity.

She yearns for life to bloom recklessly like spring flowers in February, even if it's brief. However, in reality, she lives like a toad in the mud, hiding away, ugly and dirty. All she knows is that with life, other things can be discussed. If even life is gone, what else is there to talk about? Yet, she never expected that, in the end, she would fall into the hands of Murong Jin and that bastard – the man who once treated her as a plaything to please another woman and was harshly repaid by her. That man, who is narrow-minded and holds grudges, turned out to be her final downfall.

(Source: cpophome.com)

In the sinful city of Heyang, Pan Yue, who was throwing lots of fruit and carts, married Yang Cai Wei, whom everyone despises. On the day of the wedding, Yang Cai Wei was killed, and the suspect was Pan Yue. Yang Cai Wei, who "resurrected from the dead", returned "fiercely" under the guise of "evil girl" Shangguan Zhi and was about to expose Pan Yue's true face.

In the process of bravely fighting against the evil forces of the "Four Great Clans" and investigating old cases, the two hearts came closer again. Yang Cai Wei found out that the real murderer who killed her was someone else, and Pan Yue loved her deeply from beginning to end. Everything is about to be perfect, but the people behind the scenes once again set up a trap, trying to push the two to an end of doom.