Yeah, heh heh. But that's how it is with most things...you know, too many people do the same stuff, so it's hard to be original.
Dining Bar Akira is somewhat like that, but there's more relationship development and it's quite realistic, if you think about the situation.
Of course, you could always go for something like Shiiku Gakari Rika or Tetsu x Rika (which are in the same world, basically.) for something extremely interesting and twisted. Believe me, it is TWISTED and psychological, and one of those things where you're almost afraid to read it but you can't stop, and the scenes echo in your mind afterwards (or maybe that's just me).
Yeah...but I mean, you find a really good one somewhere every once in a while.
...But be sure to have fun!