These Familiars Are Strange - Chapter 250: Quest with this setting?

Dear tired Reader, it is an honor that you have chosen this book amidst the heavy, gloomy aisles of the Library.It is with some regret, however, that I must inform you this book is ill.Your fingers should be able to feel the raised Proliferation of tissues on the surface of the Skin of the book,The words written in days of old are like Parasites taking root in the pages, longing for someone to observe their writhing,To sense, to decipher, and to touch the very essence of this sick story.If you insist on borrowing this book, please be sure to regularly check your own physical condition.Keep in mind.

Caution: This novel contains R18 content.

Chiyuki Hoshino, a beautiful otaku girl, traveled to the world of Yu-Gi-Oh! with her Fate/Grand Order Heroic Spirit deck.“Blue-Eyes White Dragon!”“Activate the effect of Arash! Stella!”“My most loyal servant, the Dark Magician!”“Activate the effect of Arash! Stella!”“I…”“Activate the effect of Arash! Stella!!!”Amid the ruins and countless corpses (thanks to Arash), Chiyuki wiped her forehead and smiled brightly. “Playing cards is so damn interesting.”For those interested in reading this fanfic, please note that I am not the original author. I have only translated and edited it to make it as readable as possible.

Thirty thousand years ago, the Heaven Fighting Race who called themselves “Gods” invaded the Spirit Realm. Hundreds of races rose up in resistance, but ultimately suffered a crushing defeat. The Human Race was the first to concede, and the rest of the Hundred Races soon followed in succession.