Kikai Banashi Hanasaka Ikkyuu

There once was a monster called Karma who loved to challenge his victims to a battle of wits. If the subject succeeded, the monster would grant them one wish, but if they lost, he would devour their soul. At the same time, there was a young monk called Hanasaku Ikkyuu, who was famed for his cleverness. He used to eagerly sharpen his mind, solving challenging riddles sent to him, until his mother fell ill. When he found that his cleverness was of no use in helping her, he gave it up. Karma seeks...