ok bạn anime finatics. i need your help on a anime show. can bạn please give me the name of the anime hoặc it's characters

this anime hiển thị 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 bởi the monk locked in a cage with a chain around his neck? if bạn know what i am talking about please answer my question. thank you