Ryn of Avonside - 21: Happy Little Fir Tree

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

Soul Piercing Konoha, born as a civilian, will go to the battlefield of the Third Ninja World War tomorrow.

Just graduated from “Ninja School”, Yangtai, who only knows three body techniques and a D-level hemostasis technique, looked at the full of energy, and finally made up his mind – “The battlefield is too dangerous, I’d better go to other worlds to hide. !”

- Description from novelbuddy

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

As a member of a beast-taming clan, Ye Jingcheng has the opportunity to exchange contribution points for beasts. To everyone's surprise, he chooses a wounded fox among all the available beasts, which people believe won't make it. However, only Ye knows that the mysterious Jade Book inside his body can save the fox's life.