Kizoku Yamemasu Shomin ni Narimasu

Kizoku Yamemasu Shomin ni Narimasu summary:

Because my father was an Earl and my deceased mother had been a commoner, I was burdened with a narrow life as an illegitimate child. As a 16 year adult, I have decided to leave the aristocrat family registry and become a common citizen. I wonder if the knowledge I obtained as a member of n.o.bility will help me in living as a commoner.
Will the common people’s wisdom bestowed upon me by my mother as well as the art of living be put to practical use?