I'm playing the Asian version, and as shown in the picture above, it is all in English text with 3 voice options. Initially, I was worried about the Chinese/Japanese print on the back of the huge box (4 disc set), but I believe it is a misprint. There are no Mandarin characters in the game, unless you are willing to broaden your grid of definitions to include Kanji as "Chinese". Anyway, the front of the Asian version's box also puts "中英合版 (English + Mandarin),which only holds true for the manual, not the game.
I'm disappointed after giving this a few hours of play. The graphics look like PS 2.5, a far cry from Irrational's excellent use of U3 engine for Bioshock! That's secondary to the fact Kiyoshi Shigematsu's Thousand Year Story is available only in text. I've just unlocked 3 stories, and they are indeed running in alignment with his reputation as a Naoki prize winner, but why aren't these scenes acted out as a CG or given interactive control to the player? The Aim Ring system is also pretty boring (no combos, juggles or special attacks), I'd take Shadowhearts' Judgement Ring anyday. Another minor irritance comes in the form of the small font size, they are hurting all 4 of my eyes. :lol
Hopefully by disc 2 I'd have changed my tune. I want to love LO, yet I'm finding myself working hard to source for reasons to like it.