-nonpdrm- — Collar X Malice Ps Vita -usa-

This appears to be a for a pirated copy of the game Collar x Malice on PS Vita.

If you legally own the game and are trying to play it on a modded Vita, that’s one thing — but the file naming format you quoted is typical of warez scene releases. Collar x Malice PS VITA -USA- -NoNpDrm-