If you're really interested in the game then best to just get it on PSP and play in English, maybe grab a Chinese copy just to mess around afterwards.
Hence my saying "replay" rather than just "play". I already own the game in Japanese on the PSP and I've already finished it. :'D This would be said messing around copy.
And yeah, anti-piracy protection on modern Chinese PC games is horrible. There have been a couple I've bought legitimately only to find I had to crack them to even play them. Ridiculous.