我的Ragnarok Online沒有日本伺服器!!我需要連線到日本的Ragnarok Online
Sorry for answering in English because we’re not offering technical support with other languages.
I don’t think the japan game server for Ragnarok Online is supported by Mudfish. 
Please send me some game packets using Packet Capture with Mudfish link while playing the game with Full VPN mode.
To add new game server, I need some game packets to analyze.