Recommendations

Both stories are about the revelation of the truth behind murders. They don't have the same director but the colour pallette used in both movies is similar.
'The Eleventh Chapter' is a little bit more comical and ambiguous.

Both dramas are related to saving lives in tough nature conditions and tell about rescue activities.

Similar in terms or the whole villian concept, and theme. But, Kill it is pretty much exactly similar. But, both of the ones I have recommended have better character development.

*Good story
*Has a Manga
*Soft and fluffy
*Actors have good chemestry

I liked both mangas so i was looking foward for the drama

Both main characters are teachers in schools where power lies with the students who have powerful relatives. Both end up changing the dynamic of the school with their bizarre personalities.

Both shows have a female lead who is older (late 20s/early 30s) who suffer a breakup and then experience a reverse harem situation in which 4 romantic love interests (including the ex) appear. Both have eye candy and a few cringe scenes and focus primarily on finding oneself and new love again.

'Twenty your life on' is about four girls on their last year of college and 'My treasure' is about the life of one girl after college. 'My treasure' could be seen as the story of one of those girls of 'Twenty your life on' after the graduation and the challenges she has to face in her personal life and in the work environment.

The trailer of Hellbound has very similar vibes with the Webtoon of Island;
both soon-to-be-dramas webtoon adaptions with supernatural monsters chasing characters

Jang Ki Yong's past life character in Born Again is similar to Kim Nam Gil's character in Island:

Both are creepy serial killer Male Leads who despite it all, are oddly charming pitiable and full of angst and pain type of characters and in both the female lead shares his pain

The similarities between these two shows are =
1. Contract Marriage
2. Rich ML
3. Hardworking Fl
4. marriage for benefits
5. sweet couple

If you like sweet couples with contract marriage at first you should check out these drama's. The couple is adorable and the flirting is done very cutely. Do check them out.

They aren't exactly prequel and sequel but they have the same format:
- Main actors who play a fictionalized version of themselves.
- Every episode is a different story (and they are not related to each other).
- Every episode is directed and written by a different director and screenwriter.

Same director/screenwriter so they have similar editing style and sense of humor. In both the story is explained from the perspective of the main characters.
The actress Yukawa Hina is also a main lead in both.

Same director/screenwriter so they have similar editing style and sense of humor. In both the story is explained from the perspective of the main characters.

=> same male lead as played by Lee Joon Gi
=> Lee Joon Gi's characters are both suspected criminals
=> both dramas have adorable little girls, daughters of the male lead
=> the female love interests (mothers of male lead's daughters) don't know the criminal record of the male leads when they were dating
==> Trivia: both actresses for the love interests (Moon Chae Won in Flower od Evil and Park Ha Sun in Two Weeks) played as second leads in Han Hyo Joo's (Lee Joon Gi's love interest in Iljimae) dramas (Moon Chae Won in Brilliant Legacy/Shining Inheritance and Park Ha Sun in Dong Yi).
=> thriller drama with many plot twists and turns, most episodes keeps audience at edge of their seats
=> backstory romance of male lead and female love interests shown in pasts scenes throughout the drama
=> main difference: female lead in Flower of Evil is the detective investigating the male lead's case; while in Two Weeks, the female love interest has a detective fiance who investigates male lead's case along with a female prosecutor
==> female lead in Flower of Evil for me is like the composite character you get if you combined the female love interest, fiance detective, and female prosecutor from Two Weeks into one character.

Alternate story-telling of the 'Well-Intended Love'. Domineering CEO ML with obsession to his FL. Not nearly as fun as the first season.