ok te Anime finatics. i need your help on a Anime show. can te please give me the name of the Anime o it's characters

this Anime mostra 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 da the monk locked in a cage with a chain around his neck? if te know what i am talking about please answer my question. thank you