I'm a serious manga artist looking for original interesting plot ideas, suggestions?

I know what you're thinking " why should I give you any of my ideas" well almost to the point of desperation when it comes to thinkin up an interesting & unique plot. I've been tirelessly trying to come up with a great story past all the cliches, but it seems that I'm in absolute writer's block right now. As for using your idea I won't just take your idea and use it as it is... I'm good a changin things around so I'll work with your idea and try to come up with something more of my own if you get what I mean. Please help?