Eunuchs Are in Power

Modern young people accidentally traveled to the ancient world of martial arts, but... The male protagonist became a eunuch, and the people in the palace ranged from eunuchs to emperors. They practiced every day, ate melons, teased other eunuchs, ate melons, worked hard to improve their status, ate melons, and then ate melons, and then... They disappeared! Let's see how the male protagonist survives in this strange world.