Toaru Majutsu no Index: New Testament - Volume 5, Chapter 3: The Gate Opens. Impregnable.

“They called me a beast,”“They called me a monster,”“They killed my mother and took my sister, yet they called me the animal!”“I will make them pay!”After losing his mother and a young age, Jayden struggled with rage and isolation, getting angry at everybody and everything, while still having the dreams of crushing those who took his mother from himBut his goal was hindered when he discovered that he couldn't possess an ability, he would remain a ordinary human in a world where power was everything.Years after being sent to therapy, he returns only to get struck by lightning. But before he could die, a mysterious interface appeared in his eyes[Requirement has been met][System integrating...][Alert! Non-human genes found in host; modifying system to meet Host's genetic code][Curse has been forcefully activated][Congratulations you have acquired the Beastlord system]“Huh? What the hell is this? And what curse is it talking about?” Jayden thought as he slowly lost consciousnessHe wakes up as a new being entirely, receiving various powers and abilities related to nature and it's creatures, but the most incredible was the absolute control over beasts. Now he could achieve his goals without being stopped and get revenge for his mother. While also leading a war with the ancient beasts against beasts from beyond.....“Mother, i have finally become the animal they say i am,” Jayden chuckled, as he stared at the bright full moon“I have become the lord of beasts,” he stated, as his body began to slowly transform into a large humanoid wolf.

Tang Long was brought to the Immortal Cultivation World by an immortal who noticed his affinity to wood and cultivation.
Relying on his amazing talent, became one of the five emperors of that world.
He failed his Heavenly Tribulation and had his soul scattered into pieces but one part found its way to Qin Haodong on Earth.
With his excellent medical skills, he became a divine doctor of traditional Chinese medicine and encountered the baby girl he made before going into the Cultivation World, whose mother was as pretty as a fairy. The little girl even asked him to find more lovers. What a cute girl…

Fat kitty died, killed by a lightning strike while stealing a chicken leg! And then, the kitty was reborn into a rich family in the 80s, which, having had nine grandsons, longed for a granddaughter and instantly made her the most adored one in the family! She was so happy with her life, being pampered by grandma, adored by parents, and protected by big brothers. Of course, it would have been even better if that big bad wolf hadn't cast covetous eyes on her.

Content Warning: R-18, Smut, Cruel MC[Ding! You've acquired the Heroine Stealing System!][Your first task is to steal the daughter of the Eastern Kingdom's king!][Your Fate Value has increased by 10!][You've slept with the hero's mother, your Fate Value has increased by 15!][The hero has developed animosity towards you. Current Hatred Level: 5 stars][The king's wife is charmed by your looks.]After being transported from his own world, the protagonist wakes up as Vritra, the son of Demon King Rohan from the Hell Continent.Since he's from another world, he doesn't have any Fate Value in this new world of swords and magic.To survive, he has to act like a villain, stealing the affection of every hero's heroine and sleeping with them.This will boost his Fate Value and help him stay alive in a world filled with wars and political conflicts!