Sempai

Note: In Japanese, nouns are the same in singular and plural form.

A Sempai is a Karateka that has earned the rank of a brown belt. Frequently, Sempai become Sensei later on in their training. To become one though, you need lots of practice -- and that does not come by sitting in front of the TV and watching The Karate Kid.

A person of any age can become a Sempai, some Sempai are as young as 8 years old.