Bandit Comic Books

OK, so I had this idea for a manga (Japanese style comic), but I 'm not sure if it's a good idea that's worth continuing. This is what I've got:

Yajuu is a vagrant soul filled with hatred towards a man who wronged him in the past. Rio is a bitter woman who just wants to find her own way in life. Kenshin is a saddened samurai with more guilt and self-loathing than any man can bear. Tek is an orphaned genius who just wants to find someplace where she can belong. These four strange warriors end up going on an even stranger journey, looking for things that can't be found on a tangible scale, and trying to leave behind things that cling to their hearts. Their journey is filled with demonic geisha, ruthless assassins, insane bounty hunters, and something that they are all foreign to-companionship. In their world, nothing is ever set in stone, and the unexpected is the most common of all.

So just leave an opinion or some type of constructive criticism please
-thanks, afropunk