Review Detail of FunnyBuns in My Magical System

Not a bad way to pass time but not even 5 chapters in we see the first plothole. I decided to review after reading all the free chapters out currently and that isn't the only issue, so many things are just never explained like how the MC's main class went from unarmed to cultivator or when he upgraded it from apprentice to silver rank. The series is called my magical system but the system is actually called the soul system that uses soul energy and he is a Cultivator not a magician.