Who is the hero in this idiom story?

Who is the hero in this idiom story? The protagonist of this idiom story is Zhu Maichen. Explain the negative salary: carrying firewood, Zhu Maichen used firewood to study in the Han Dynasty; Hanging a horn: Hanging a book to be read on a horn, and Li Mi of Sui Dynasty rode on the back of a cow to read. Reading while working is not afraid of hard work. Sources such as negative salary, such as hanging horns. Although very tired, but still very bitter. Song and Wang's "Three": Introduction: The year of birth and death is unknown, and Wu County (now Jiangsu) in the Western Han Dynasty was born. When Emperor Wu of the Han Dynasty was a Chinese medicine practitioner, he was a tired official, who knew the magistrate. Zhu Maichen's family was poor, studious and made a living by selling firewood. Recommended by Yan Zhu, a fellow villager, Chinese medicine. East Vietnam revolted many times, and Zhu Maichen made suggestions to Emperor Wu of Han Dynasty to pacify East Vietnam, gained trust and became the prefect of Huiji. About a year later, he was promoted to the rank of Jue and Taishi for his military achievements in quelling the rebellion in East Vietnam. A few years later, Zhu Maichen was dismissed for breaking the law. Soon after, he was re-appointed as Prime Minister. Later, he was killed by Emperor Wu of Han Dynasty in Chang 'an.

& gt When Zhu Maichen was a child, his family was very poor. In order to make a living, he has to go up the mountain to cut wood every day and has no time to study. But he is tireless in learning, and often walks with firewood on his back when reading. (Zhu Maichen studied with a negative salary) In the Sui Dynasty, there was a man named Shi Mi who used to herd cattle when he was a child. Every day when he goes out, he takes some books and hangs them on the speaker. When cows eat grass, they sit on the grass and study hard. (Li Mi hangs a book)