It's plot revolves with the second genders namely Alpha, Omega and Beta. It is a very interesting plot, since there's an mpreg regardless if the character is a Male or Female, as long as their second gender is Omega, which is the one whi bears child. Most of the mangas and manhwas listed here contains violence, noncon sex, too much dramas, rape and such problematic issues, however, I also have here a lot of fluffy story, which is more refreshing and cute.