This manga:
-Lets make a Isekai Manga! (Again...)
-Lets make it Harem (Again, but nice!)
-Lets push every single know trope into it (Ok...)
-Lets give MC some hot girls (Nice)
-Lets make the antagonist the second male lead (What?)
-Lets give him his OWN Harem, you know since its a HAREM manga (WTF?!)
-Lets ignore romance and character building and push for battle scene (Bro stop)
-Lets prolong these battle because why not (Bro, I said stop!)
-Lets push the main lead on the back burner (You ok man?)
-Lets focus more on the side characters and antagonist and how they love him (Dude you on drugs?)
-Lets add eddy stuff like pointless killing, human experimention and shit + betrayal for MC from his own Harem chick (Fak You)
-Lets make the Antagonist with no redemption quality (I dont know what to say anymore)
-Lets prolong the fight scenes even more! (Im done with this shit)
-Lets make main lead forgive him! (...)
-Lets continue with the fighting! (...)
- Oh ? You thought this was a "Harem" manga ?