Even so, it's really light. I take every opportunity to talk to the characters, even when I know they'll say the same thing, because I desperately want more than the game is giving me. I am enjoying what they provide though.P1 has most of its story in character building. P2's the same way, you don't get deluged in exposition. You just enjoy the ride.
Right now I'd say that Mark is probably the most well realized character. Nanjo is especially one dimensional and Maki is kind of just there. Elly actually has more cool stuff in her conversation dialogue than anyone else.