i Hate NTR but the System Want me too NTR the heroine and Villainess

Seiko despises NTR. No, really—just seeing an NTR scene in a manga or anime is enough to make him physically sick. Romance? Fine. Drama? Sure. But if someone steals the girl? Instant vomit. So when he blacks out while playing a dating sim called "The Heroine Loves Me", the last thing he expects is to wake up inside the game… with a system called [NTR System]. Just seeing the name nearly makes him retch. "WHAT?!" he screams, face pale as a ghost. "Is this a curse?!" Can he even Survive most of heroine Because Some of the Heroine are Yandere or Possessive Especially that sadistic villainess… makes his spine tingle in Fright Making him Gulp --- Note: This isn't a smut story—so don’t expect scenes every chapter. There might be some steamy chaos every 10–20 chapters, but the real focus? Survival and Romance there will be unexpected plot twist and Funny Twist This is my first time making a Novel again The more the Collection the more it motivate me ;)