As the System's Protagonist, Have I Made Any Mistakes?

After reading so many system novels, many people have a doubt in their minds. The system has so many powerful functions, why doesn't the system become the protagonist? So, the system became the protagonist. This book tells the story of a man who just possessed a host, only to find that the host's soul was missing. He had no choice but to upgrade himself and pretend to be sexy to pick up girls and fight monsters. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.