According to the ESRB, this game contains: Blood, Intense Violence, Language, Sexual Themes
Parents would be well-advised to steer their children towards something else. The game's structure, reading and difficulty will be far above the heads of most young ones, so there's not a lot here that could be considered kid-friendly. Personally, I think the ESRB was overreacting a bit by tagging the game with "Sexual Themes and Language", but there are a few scenes with some fairly graphic bloodshed and violence. Long story short, this is a mature game for mature players.
RPG fans with an adventurous streak should be prepared for something completely different, far afield from the standard SquareSoft notions of game design. It's a refreshingly unusual project, but could do better in terms of being a bit friendlier. Still, if you can live without teenybopper queens and hours of CG cutscenes, it's worth checking out.
Fans of ultra-stylish artwork take heed of Kazuma Kaneko. If you ask me, he's one of the most talented and distinctive visual designers in games today, so check it out if art is a priority.
Deaf and Hard of Hearing gamers will have no problems here. There are no voiceovers, all dialogue is presented through text, and there are no important audio cues.