A Record of a Mortal's Journey to Immortality: Immortal Realm - Chapter 683: True Mantra Palace

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

Living things really are ignorant – the greed to obtain the key to knowledge and the fundamentals of energy overpowers them. Little do they know that knowledge is full of lies and energy is the root of destruction. Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.

-Mage Adam

An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

#r18 #smut #No-Yuri #No-NTR“I Died for my own happiness, I died because of my selfishness, I died because I feared living without her again, But I died only after I killed the Gods.”Rael, the Demon King, died. He was born from the Great Darkness and was given the name of 'The Last Demon.' Rael's birth was the beginning of the world's demise and the end of all life in it.His birth was the start of his loneliness, which would eventually become the cause of his madness and destruction.But when that girl showed up, he felt the loneliness slowly fade away. The girl, with a smile so kind, became the first one to look at him without any trace of fear or disgust.That girl's smile, the way she talked to him, and her eyes full of genuine affection... they were all he needed to become the person he was.He would never let anyone take her away. She was his everything, and no one could separate him from her.But...“Why!”'It should've been fine.''We should've lived happily together.''Yet why...!'“Why she has to sacrifice herself for me, when she was the one who was supposed to live a happy life?”“Why she had to give the future we could've shared together, just for my sake?”Those were his last words as he died fighting the Gods, but he knew deep inside his heart that he wouldn't be able to see her again.And yet...“Where am I?”He wakes up in the same girl's room, naked, but in another world.Ding![Infinite Harem System has been activated!]Now he is gonna evolve his harem. The one who has the strength to defeat the Gods, the one who possesses the most powerful and destructive power.And those are the Demonic Queens, who have the power to shake the universe.Ding![Bat Queen has evolved to S+ Rank.][Vampire Queen's teeth have upgraded to max level.][Dragon Queen....][Queen of Bees, Queen of Scorpions, Queen of Tentacle Monsters.... All of them have maxed their abilities and are evolving to their ultimate form.]But, he has more than ten queens, so how is he gonna manage all of them?“I will be fine,” said Rael.Rael, the Demon King.His new story begins.No, his harem starts now!P. S. Cover isn't mine.