A Kohai is an eager student, say eager student.
Every Black Belt starts off as a Kohai, an eager student. They make sure they complete the required amount of classes and make up any missed classes. They train hard when they are in class and show good focus. They practice their curriculum inside and outside of the dojo. They are always working on making their body and mind stronger. Most importantly they show the respect of a Martial Artist inside and outside of the dojo.