Board Thread:Questions and Answers/@comment-24573865-20141214193952/@comment-8656-20141216010958

Infinity Moment is not a "separate" game that comes with Hollow Fragment. Rather, the campaign from IM has been integrated into the setup in HF, to sit alongside the "new" Hollow Area campaign.

Or to put it another way, think of HF as effectively being an enhanced remake of IM, but with the Hollow Area as a new aspect of the overall game campaign to explore. (There are a few tweaks to the Aincrad portion of the game storyline in HF relative to IM, though.)

And yes, Hollow Fragment has a Japanese voice track only.