From KO One through KO Five. Multiple female leads, with canon couples broken up.
Also known as: Building a Harem in the Ultimate World
The protagonist gets a System related to High School DxD.
Complete missions to unlock more of the System’s progress.
The missions are based on the nickname of Cheng Ge. Not that Cheng Ge, the other Cheng Ge!
The Red Dragon Emperor’s body equals a succubus’s body?
Then the Two Heavenly Dragons’ bodies must equal a double succubus body!
And clones could count as triplets, right?
Huangfu Mo: Linghu Cong? Ren Yingying? Little Deaf Girl? Vampires? What on earth did KO Six turn out to be? (The protagonist hasn’t watched The Legend of the Black Sugar Chivalries.)
There aren't many with multiple female protagonists, but they're not bad either.