AceBandage
Banned
http://wii.ign.com/articles/947/947807p1.html
Within the first few minutes of starting play, you learn of main character Seto's goal: to make his way to a red tower far to the east. There, he'll apparently be able to find another person. This is a big deal, because aside from Seto, the world appears to be populated by nothing but ghosts.
Seto heads out from his home (actually an observatory) and almost immediately encounters the white-haired heroine, Ren. He appears to fall for her, so when she heads off on her own, his goal becomes to reunite with her.
I'm currently in pursuit of Ren, and my adventures have taken me to an abandoned subway, an abandoned amusement park, and, most recently, an abandoned hotel. The key word is abandoned.
Seto does manage to make new "acquaintances" in all these locations, though. His first encounter is with P.F. (Personal Frame), a computer that attaches to Seto's back and provides guidance. Later, he counters Kurou, the guy in yellow and purple who looks like he's from a Persona game.
There's a common theme with all these encounters. Rather than sticking around through the end of the game, the sub-characters usually part ways after a bit, usually accompanied by a lengthy farewell that suggests they won't be coming back.
Regardless, you get a good chance to get to know the characters. This can be done directly through dialogue, notably with P.F., who talks with an awful lot of personality for a computer. Other characters reveal their background more gradually through items that you find scattered about. Take these items to a bonfire -- the game's equivalent of a save point, where you can manage your inventory and purchase items -- and you'll get to hear a dialogue sequence involving the item and usually offering insight into the current character.
It might be surprising to learn that Seto keeps on encountering other characters as he explores a ghost world. With all these interesting personalities to interact with, how could be possibly be lonely? You'll have to figure that out for yourself.