anakuro

@yakihiko not exactly. Bangya's a vk fan but like one with it as their main hobby. Tbh bangya is like a lifestyle--it's hard/impossible to be bangya when living in another country imo. 

A ~gya is simply a bangya who is a fan of that band/band member. So shellmy gya = shellmy fan. It doesn't say anything about how much someone goes to see that band live.

The word you want is "kayoi," those are gya who go as much as possible. Jouren's a step above kayoi though. They basically go to every live and are pretty much a clique of bangya who help each other out.  

Thank you for explain @anakuro, now I understood their meaning and differences  

No problem!