Although the prince is noble, he is not cool. He loves food, inventions, and science. He is a very motivated young man. According to current standards, he has more aura than a rich, handsome man.
It's a pity that after traveling to modern times 1,300 years later, he is nothing. Especially when he faced a girl who was both talented and beautiful and had a successful career, he instantly degenerated into a string-wearing man.