An animated film about Ryoukan, a real-life Buddhist monk and celebrated poet who lived in 18th-century Japan during the Edo Period. Although born into a wealthy family in Izumozaki, Ryoukan chooses to abandon the comfortable life he would have inherited to understand the true meaning of life through Buddhist teachings. From early adulthood, he undergoes a series of harsh trainings that demand a solitary and meager lifestyle. Throughout it all, he remains an extremely modest and humble person, a true humanitarian who accepts every individual for who they are while rejecting all worldly fame and wealth. Ryoukan finds true peace in life through nature and spending time with children. His pure mind and affable personality have captivated many, and his legacy and the wisdom of his teachings live on today.