Fortune Quest: Yo ni mo Shiawase na Boukensha-tachi (1993)

Original title: フォーチュン・クエスト世にも幸せな冒険者たち

Six cash-strapped adventurers embark on a quest to collect hot spring water to re-pay their debts in this lampooning of classic Dungeons and Dragons-style video games. The party gets involved with a plot involving a white dragon who demands a human sacrifice every 10 years, and an evil mind-controlling mage.