Been meaning to redo this post for a while. Here is what should now be a working copy of the client and server from Tsuki Online that was originally posted here viewtopic.php?f=18&t=5972.
The client and server are Rev4 but have been modified to use iRose content. A lot of iRose STB data has been modified to work with the Evo STBs, server calculations have been changed and even item types adjusted. These files contain a lot of fixes but unfortunately are not at a point where they can actually be used for a server. The source is also unavailable so server fixes aren't possible.
This client is unlocked so you should have no problem extracting anything. You won't find anything special in here as it's all just a copy of Arua, placed into Evo.
Client:
https://mega.nz/#!g1EjmQpB!_1u69vVKiYV0 ... 3_BBCtRBp4
Server:
https://mega.nz/#!JxERTIKT!Y8J9bjXXf59_ ... 5XVIApDYSw