Gon's Harem System - Chapter 5: Ana is freaky(18+)

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

30-year-old Jo Minjoon has always wanted to become a chef. He started his culinary career late in life, however, and is currently chopping onions at a restaurant. Regretting his life choices, he wishes he could go back to change it all and falls asleep. Meanwhile, someone out there is willing to give him another chance and send him back in time. How will he use the new powers he obtained from this mysterious being?

Reina Suzuki was an overworked office worker—until she died and woke up as Lavinia Devereux, the infamous villainess princess of the Elarion Empire.She knows how this story ends: she’ll drink poison and die. A painless, easy death. So why bother changing fate? Villainy, revenge, redemption—sounds like way too much work. She decides to do absolutely nothing and let the story play out.But her terrifying father, Emperor Cassius Devereux, won’t ignore her like he’s supposed to. He watches her, questions her, and—worst of all—starts acting like he actually cares.Lavinia just wanted a quiet villainess retirement… so why does everything keep changing?

Freshman student Yang Dingtian possesses the Nine Yang Body, found only 1 in million. His Yang Fire is incomparably vigorous and thus, he cannot be near a female’s charms for his entire life. On the night of his 19th birthday, he decided to bid farewell to his virgin life. After stealing and tasting the forbidden fruit, he spontaneously combusted as the result!

In death he crossed over to another world; a world that held respect for Martial Power. His, originally, catastrophic Nine Yang Body was the Nine Yang Body that couldn’t be seen in a millennium! He was saved by a mysterious old man when he was at his last moments and the old man received him for a disciple, then betrothed his daughter to him. Thus, in this odd way, Yang Dingtian became the successor of the largest clan under Heaven, and became the number-one-beauty-under-heaven’s fiance.

- Description from Novelupdates