ok you animê finatics. i need your help on a animê show. can you please give me the name of the animê or it's characters

this animê show is about 3 guys and a male kid who travel together defeating monsters. one of the guys is a monk. another guy is a gambler who likes smoking ang hot women. another guy has a pet dragon and the kid was found por the monk locked in a cage with a chain around his neck? if you know what i am talking about please answer my question. thank you