Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 527 - : Flying to the Sky

Caleb Uesugi, a high school boy, accidentally awakens his Succubus blood and is caught between two High-Class Devil leaders, Rias Gremory and Sona Shitori, who desperately want him as a powerful familiar. He stalls, using the competition and their attractive Queens to secretly gain new talents and boost his power through physical intimacy, while dealing with a mysterious foe who leaked his secrets.Tags：Supernatural Romance，Harem，Devil System，School Life，Power Progression-------------Support me and want to read more chapters:patreon.com/Briery

[Hardcore Host Style]Interviewing The Climbers: For the nation, we reach the summit, not yielding an inch!Interviewing The Captain: Trust us! We are professionally trained, confident, and capable of ensuring your safety!Interviewing My People, My Country: The martyrs would smile with relief; the flag will always have its successors!Interviewing the CCTV Boys, Kang, Sa, and Zhu: Knowledge brings confidence; even witty banter can be humorous!Interviewing The Bravest, Operation Mekong, Operation Red Sea, and more…I am Host Yang Fan, taking everyone on a journey to explore the stories behind the films!Feilu Novel Network reminds you: This novel and its characters are purely fictional. Any resemblance to actual persons, living or dead, is purely coincidental. Please do not imitate.

Zayn, a wealthy second-generation who was in the prime of his life was known as the “Perfect Human” for mastering various fields of expertise until the peak of perfection was stabbed to death by his fiancée. Because of the cancellation of their engagement, his former fiancée turns out to love him obsessively, so, she stabs him in the heart.

“Honey~ I won't let you go, even after death!”

After he was dead, he was reincarnated into a fantasy world novel that he had read as Arthur, a side villain and stepping stone. Because he doesn't want to be the protagonist's stepping stone, he will change his fates!

“I will change my fate and reach the pinnacle of this life. The Protagonist? Look who's the real protagonist!!”

[Ding~! Congratulation to the host for activating the system!]

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Son of a bitch! I just finished this godawful fantasy novel, and now I'm knee-deep in it – as David, the disgraced son of the Solarian Empire's top general! Talk about some twisted cosmic joke. But hold on a damn minute... maybe this isn't all bad. Armed with the knowledge of that trashy plot, I can become the ultimate shadow player, an overlord perhaps. Screw the damsel-in-distress harem too – it's time to pull the strings and become the real power behind the throne. This isekai might be a steaming pile, but I'm rewriting the ending with a little more... Debauchery (wink wink).