Jack wa Mame no Konoshita de

A smug, boastful man named Jack has died. His son Dick goes to the town market to sell his father's belongings, a broken harp and a bird feather. These are the items his father had boasted about having obtained from the palace in the clouds by climbing up a magic beanstalk. When an old man notices the harp in the market, Dick realizes that his father's story is not a lie but the truth, so he sets out to get the magic beans himself...

(Source: Hakusensha, translated)