Anime Crossover: I'm the Fourth Primogenitor, with Servants from All Worlds

Shen Yu jumps between anime worldlines and discovers that he has become the Fourth Progenitor. His junior, Yukina Himeragi, his teacher, Nayuki Minamiya, and his classmate, Alisa, are all around him. He thinks he's about to enjoy a blissful life as a vampire progenitor with a harem, but then he discovers that the world is falling apart more and more!

His classmates aren't just characters from other anime. Spirit disasters, cursed spirits, monsters, and demons keep appearing one after another. Fortunately, he unlocks the Myriad Worlds Retainer System just in time. The more retainers he has, the stronger he becomes!

And so, Shen Yu begins recruiting across the myriad worlds... and embarking on the path of building his retinue!

Miko Yotsuya: "My master's choices are the will of the world!"

Yuki Tsukumo: "Boss, what kind of women do you like?"

Alisa: "MASTER, you are my one and only!"

Emilia: "Everything the Progenitor says is right!"

Yukina Himeragi: "Senpai, you already have me, so why are you fooling around with other girls? Sob, sob!"

Esdeath: "The Fourth Progenitor, a man like a god. I've fallen in love!"

Eto Yoshimura: "The One-Eyed Owl pays her respects to the Progenitor. I hope you'll let me join your empire!"

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Please do not imitate.