Literature Reference: The character 'Yan' comes from the 'Book of Songs: Major Odes of the Kingdom - King Wen': 'Such splendid talents are born in this kingdom. The kingdom thrives, the pillars of Zhou. With many talents gathered, King Wen finds peace.' The character 'Ru' comes from the 'Book of Songs: Minor Odes - The Deer's Call': 'I have honored guests, playing the zither and blowing the panpipes. The panpipes and reeds play, offering baskets of gifts. Those who love me show me the righteous path.'