I was hesitating to make that change..
But correct me if i am wrong:
The japanese title really depends where you took it from..
For example,
wave master website include the "Farewell, My Beloved" part on the title.. as well as some other websites.
Plus it's printed as part of the "logo" of the game on the front cover.
Maybe the obi should clear that, if our policy is to follow what is written on it.
But i will not make this discussion a big matter, it was more a personnal preference to be honest
