Saga of The Night God - Chapter 7 Teach Me How (R-18)

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.

After a period of 10 years, he now has time to freely recover. Having trained until he had excellent military and martial skill, he sweeps through various military districts and returns back to his hometown. Under the monitoring of a beautiful female cop, he re-establishes his family’s bodyguard service, protecting beauties and moving unhindered, his achievements causing the fame of his outstanding, god-level bodyguard service to resound across the world!

- Description from Novelupdates

Sequel of Allison, taking place about 17 years after the original series.

Transmigrated Become Sukuna, but the host is Yukinoshita Yukino?“Ryomen Sukuna? The strongest sorcerer in history? He’s just an ordinary person born in a time without me.”Hayashizaki stood in front of Ryomen Sukuna, looking at him with a playful expression.“On my left is the 'Little Yukinoshita,' a possessor of multiple techniques, easily wielding both the Limitless Cursed Technique and the Ten Shadows Technique; on my right is the 'Big Yukinoshita,' who has awakened a unique modern technique, no less powerful than me. As for slashing techniques, those are just our basic attacks.”“So, tell me, how do you, Sukuna with 15 fingers, plan to deal with this?”Ryomen Sukuna stared at the black-haired young man in front of him, whose cursed energy was identical to his own, dumbfounded.

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates