What a manhwa. Everything is so not typical for a Korean adult manhwa.
Usually:
- MC has a small dick
- MC is weak at sex
- Chicks do prefer big dicks
- Chicks fall for hard rough sex and so fall for the douche.
This manhwa:
- MC has a big dick
- MC is rough at sex
- Cherry haven't felt and seen a big dick like MC's
- Cherry felt little bit painful during sex with MC
- Ex-wife probably felt painful during sex with MC too
red hair girl has quite a lot of history with MC years and years of it, they probably know more about each other than an ex wife who doesnt know how to listen and a girldriend who fell in love because a guy was "nice" to her. Albeit she is a bit crazy.