Recommendations

Both dramas are about a woman who lives an ordinary life during day hours, has a secret night life as some kind of "superhero" Robin Hood

Knight Flower is a martial arts master and an unconsumated widow. without kids, living with her in-laws, in Joseon. Through her night escapes, she discovers why the in-laws kept her living with them, and also she meets a guy she will marry,

Both dramas have:
-Wrongfully accused MC
-Stolen identity
-Hidden mastermind
-Psychological elements
-False identity/impersonation

2 relationships that start with a big lie. In too beautiful to lie, Kim Haneul is a former convict who pretends to be a stranger’s fiancée after she found his engagement ring on the train. As she needs a place to hide she goes with the flow.
Both dramas are taking place in the korean countryside.

The dramas have in common being comedies about female prosecutors going back from amnesia. They both have to uncover the truth and the reason behind the accident that put them in that state.

Although I haven’t watched Happiness but one thing I know is the fact that both series are Thai Zombie themed series…
One is a remake while the other one is original works…
Zomvivor almost become Thai’s first zombie series ever made but,,, the production time makes the series become the second or third one that Thai has ever produced… (I have been waiting since 2023… so that should be normal)
The cast and the schedules of the cast as well should be one of the biggest factor that made Zomvivor takes it times… they want the quality so… yes^^

as I was watching spooky in love , I realized that these two shows are very similar , the main character can see ghosts , the ghosts are not creepy or dark , but rather. normal and minding their business somehow , however I would highly recommend watching either of the two specifically if you are looking for something funny to watch and laugh at .

Both dramas explore a mature, realistic look at love, focusing on a broken relationship that gets a second chance. Instead of a typical fairytale romance, both series force their lead couples to face the emotional fallout of a separation, overcome communication barriers, and heal past wounds. They highlight personal growth and mutual understanding as the characters learn how to truly love each other the second time around.

Hell-Borne Soul Hunters:
Both feature actual entities from Hell (a demon and an underworld judge) who walk the mortal world to harvest or punish the souls of corrupt humans.
Glitched Supernatural Powers:
Both powerful leads face a sudden loss of their absolute abilities after interacting with a specific human, forcing them to experience mortal pain and vulnerability.
Chaotic Enemies-to-Lovers Chemistry:
Both shows thrive on a fiery, bickering relationship where a ruthless supernatural predator is forced into a protective alliance with a human, eventually learning empathy.

Ruthless, High-Fashion Anti-Heroines:
Both feature powerful, stylish female leads (a demon and a cursed soul) serving divine punishments on Earth while wearing extravagant wardrobes.Underworld Justice: Both shows blend fantasy with the afterlife, focusing on balancing the scales of cosmic justice and sending souls to their final destinations.
The Moral Compass Romance:
Both chaotic, supernatural heroines are paired with soft-hearted, strictly ethical human male leads who force them to learn empathy and seek redemption.

1. The main leads of BLF are in GR (as a couple ofc)
2. Both dramas have multiple couples
3. Do you need any other reasons?

They share the same core setup… an ordinary, socially uncertain protagonist gets thrown together with a popular, good looking boy through a random school circumstance. In the seat-swap story, Haru finds a confession note from Kosei, the class's most popular boy, and gets swept into Kosei's persistent affection. In School Trip, Hioki is unexpectedly placed with the school's popular boy group the four heavenly kings where he becomes close to Watarai. Both use a chance reshuffling (seats vs. group placement) as the catalyst, feature a “why me” shy/ordinary boy opposite a charismatic love interest. School trip is more friend group dynamics, while after moving seats is more one-on-one.

Both are Japanese BL school romances centered on a popular and good looking boy falling for a quieter, ordinary classmate, with a mix-up or accident sparking the relationship: Haru discovers a confession note from Kosei, the class's most popular boy, and gets swept into Kosei's unwavering affection. In Takara-kun & Amagi-kun, a shared task leads Amagi to confess, and cold, popular Takara agrees to date him despite his standoffish nature. Both explore secret relationships and emotional insecurity, but Takara-kun & Amagi-kun leans more everyday life with quieter, ongoing relationship drama, while the seat-change story starts from a more comedic misunderstanding.

Marriages that looks perfect but beneath is an affair, where the parents choices heavily impacts the children.
For both, the affair was just the beginning

Same FL amazing as usual, the best actress to deliver smart, emotionally strong, witty, playfull character, no stupid business with her. no draggy misunderstandings with her. Really smart. but so cute too.

Same 2nd ML , and director.

ML is different here, more fierce, domineering, suitable to the emperor, the most powerful person in the history. but does have comedic comments, humor, glances, has that something in eyes when looking at FL.

Main couple chemistry amazing.
Vengeance elements, court politics elements,

All of the cast of Undercover Chef have appeared on PTCoMR S2. Several of them are regular cast, some going back to 2014. Fans of UC should also enjoy this.