He Became A Monstrous Genius After Obtaining A Time Dilation Artifact - Chapter 77. Hooded Devil 2. The whole Federation is shocked!

Crossing into the anime world and have a rescue system that will pop out a quest suddenly.

Can I get items and abilities after completion?

Do I have to travel to another world?

But before that Yuuki needs to save the world of otaku? Even though he is a Yakuza?

Everything start from here.

(This synopsis looked like the one from my Hitotose Note).

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Only update, when I have nothing to do

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Cover not mine, it's from anime Hajime no Gal

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Grammar sometimes sucks but bear with it.

https://discord.gg/Q3MFzds

If you want to tell me there is a grammar mistake.

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https://www.patreon.com/akikan40

Maybe I'll full of energy to write your favorite fanfic.

Known as the country’s top onmyoji, Yuuma Kisaragi, who lived to the age of 99, awoke to find himself in an unfamiliar forest. A voice echoed in his mind, revealing that he had been reincarnated into another world at the age of 20.“Good morning, Master. Skip the greetings and please defeat the goblin in front of you.”The voice belonged to a skill acquired during reincarnation called “AI,” designed to assist Yuuma in his new life. When the skill, AI, took over the form of a golden-haired fox yokai, the familiar shape of Yuuma’s shikigami, he decided to embark on a new life alongside AI-chan.The onmyoji and AI-chan’s second life began, tackling various challenges and formidable enemies with the strongest spells and shikigami.

Sixty Years ago, one middle aged man brought a Qilin that looked like a pug and a mandarin duck that looked exactly like a duck, walking into the Imperial City of the Central Plains for the first time.

Dani was just an ordinary high school student—until fate played its cruel hand. After losing his parents at 15, he was left alone in the world with only money to his name. Neglecting his health, he developed cancer, and while waiting for death in a hospital bed, he found solace in novels, manhwas, and manga.He often cursed the weak romance in harem stories, where the MC had power and a harem but did nothing while the women fought over him. But one novel captivated him—a masterpiece about 100 heroines, each with tragic pasts, rising to the top of the world. It wasn’t about an overpowered male protagonist but about the struggles and triumphs of these heroines.“If only I could transmigrate into this world and marry them all...”Then he died—and woke up inside the very novel he admired.But not as the protagonist. Not even as a major character.Instead, he is reborn as Dani Everhart, one of the many sons of the king, a forgotten prince with no real power or influence. He is wealthy but not a contender for the throne, overshadowed by his brilliant older brother. However, he has one advantage—his knowledge of the story.He knows the heroines' hidden pain, their struggles, their tragedies.And he refuses to let them suffer.With no grand ambitions for power, Dani sets his sights on a single goal—to make each of these women fall in love with him, forming the greatest harem the world has ever seen.But as Dani gathers heroines by his side, his actions begin to change the story itself.And soon, the world will realize—this forgotten prince is no background character.He’s about to rise.