Bai Yu transmigrated to the world of High School DxD and became a member of the Astaroth family, one of the seventy-two pillars of the Underworld.
From the start, his parents left him a marriage contract and ordered him to bring his fiancée, Sona Sitri, home!
Bai Yu had no choice but to head to the human world and carry out his parents' request.
He thought it would be an easy, invincible daily life: flirting with his tsundere fiancée, Sona Sitri, and occasionally beating up villains like Cao Cao, while helping his fiancée bully Rias Gremory, the young lady of the Gremory family!
But the story... seemed to take a strange turn.
The vice president of Kuoh Academy was Kaguya Shinomiya!
The loli mascot wasn't just Koneko Toujou. There was also a girl with amnesia who claimed to be Athena!
The elf girl Kurumi Tokisaki watched Bai Yu from the shadows, looking ravenous!
Then the sign-in System activated, granting him a Gorgon Stone from the start! A stone tablet containing the Trinity's divine essence!
This is a crossover world featuring Date A Live, Nura: Rise of the Yokai Clan, Kaguya-sama: Love Is War, and more.
I'm no good at writing a synopsis, so please read the story!
This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.
If you don't want to catch up, go search for another book, which is also Cang Na's fiancé.
If you don't work hard to update, you will become a eunuch here.