: This seems to be a code or identifier, possibly used by a specific distribution platform or a catalog number for the game. "RJ" could stand for "Reitaisou" or something similar, which might be a label or a series identifier, though it's hard to say without more context.
: This term usually refers to a repackaged version of a game or software. It often implies that the content was originally distributed in one format or package and has been re-released in a different form, possibly adjusted for size, compatibility, or ease of installation. futago suimin suyasuya ecchi v110 rj01296782 repack