Recommendations

the bully in SB is also the bad guy in UC - Jung Won Chang
same trope where both the MC is being bullied then suddenly got stronger only difference is Uncanny Counter focuses more on killing the evil spirit and not as being bullied unlike Shark the Beginning both are great tho

recommending this since Wi Ha Joon is also a support role in 18 again, if you kove him you can give 18 again a try

very different storyline but if you love Wi Ha Joon as a good inspirational guy in Shark: The Beginning you might like him in Midnight where he's the bad guy! Also Jung Won Chang is also here as a police officer

Similar vibes. Like something is off. similar cinematography.

Similarities:
- both dramas give similar vibes
- younger man / older woman relationship
- FL motivates ML to work and make progress, she makes him believe in himself, be more confident and ambitious (in OnO she's a boss to him; in HKwSHnYH she's a teacher to him)
- love triangle
- both are worth watching

Similar in terms of learning to work as a team with different, clashing personalities; coming of age story (albeit Dive is College)

While not really the best out of the Thai's, there are similar treads of coming of age, leadership, swimming, and friendship.
The differences come where the Thai story is, of course, a BL

Both have the theme of Body swap and through the obstacles they face withe their bodies and surroundings they understand the meaning of life

Hira Kazunari, a high school student who doesn't talk much, has no friends and belongs to the bottom of his class. The person he falls in love with at first sight is Kiyoi Sou. He is "The King" who doesn't hang out with anyone, is equally ruthless, and reigns at the top of the class. With the hope Sou will notice his presence, Kazunari serves him devotedly, running errands and buying lunch. But his faith in the absolute monarch gradually falls into lust.

Hira Kazunari, a high school student who doesn't talk much, has no friends and belongs to the bottom of his class. The person he falls in love with at first sight is Kiyoi Sou. He is "The King" who doesn't hang out with anyone, is equally ruthless, and reigns at the top of the class. With the hope Sou will notice his presence, Kazunari serves him devotedly, running errands and buying lunch. But his faith in the absolute monarch gradually falls into lust.
Japanese bl adaptation

Both about youngster raised by villain. One is a drama the other one is a movie. Young innocent main lead later found out the man he/she respect and lookup for, was the father’s killer. Revenge and strong surviving skill with a touch of romance.

Falling into you is like gender role reversal of the main leads
In MMN there is an uncle niece duo fall for a sister and brother, in FIY there's an aunt nephew duo falling for a brother and sister,
In both dramas ML help FL in healing from the past and provide strong emotional support,
FIY is more much more shorter and light hearted as compared to MMN (it contains slight toxic side character relationships )

Both are about a couple, which tries to survive the turmoils within their own family and circle of friends and save the family company. Both male leads have crazy sisters, which tries to sabotage their love lationship. Female leads are innocent people, which learns to lie even to their most loved one.

They both are quite similar. In Padiwaradda, he's a sheriff whereas in MLSG, he is something of the same sort (forest officer, I believe). Both are set in a village. Also, the female leads in both are not who u expect to be. Their real identities get revealed at one point in the drama.

Both series are about troublemaking wealthier male leads falling and becoming better men for older female leads. Both series are fun to watch. Unlike Promise Cinderella, there is couple air time and it's is sweeter in Last Cinderella. Also, there are more side stories in Last Cinderella. LC deals with more adult stories than PC.