Hyakuki Yakō: I Inherited My Grandfather's Mantle!

[Catch monsters + urban + funny + nurturing male protagonist + defend Xia Kingdom + run away if you can't beat + practice] My name is Lu Zhiyuan, and my grandfather's name is Lu Jin, nicknamed [Ma Yi Celestial Master] I never went to school and have never seen my parents since I was born. I lived in seclusion with my grandfather in the Tianshi Mansion on Bilian Mountain since I was a child. It was my grandpa who taught me how to read and write and taught me some of his demon-catching and divination skills... Grandpa is the 68th generation Celestial Master of the Celestial Master Mansion, and belongs to the line of red-robed Celestial Masters. On March 30, 2120, the spiritual energy of the entire Xia Kingdom revived. Those corpses that had been sleeping underground for hundreds or even thousands of years would become incorruptible after absorbing the spiritual energy. Every fifteenth full moon night, when hundreds of ghosts walk at night, they would come out to supplement and absorb Yang energy... Due to the revival of spiritual energy, the ghost gates in the four regions of southeast, northwest and northwest were wide open. This also forced people to send elite and professional demon hunters to the four regions to suppress the ghost gates to prevent the destruction of all living beings... It is precisely because of this reason that Grandpa and the others, professional monster hunters who have been silent for nearly 150 years, can reappear in people's sight... For a time, "Tianshi became the most respected profession among people"! Me: What is Grandpa Tianyao? Is it awesome? Grandpa: Well, that's great! Heavenly demons are demon kings who belong to the fourteenth realm or above. Just remember that if you encounter them in the future, don't just run away. Me: Grandpa, what are your chances of winning against the demon? Grandpa: Don't worry, you'll die. Me: Wow, Grandpa, you are so awesome, aren't you invincible? Grandpa: I'm talking about myself...