I am not ashamed to say that Gintama is my most favorite anime ever. It has the biggest and most unpredictable character set starting from masochistic shinobis to warrior with an older woman kink. This anime shows interactions between ALL the characters and that makes the story become more lively. Its also probably the funniest anime ever, although, the first 20 episodes are kind of lukewarm. But later on, this is certain to become the best show you have ever seen. Also this has the best protagonist ever, lazy and sleazy, thats Sakata Gintoki for you.