The annals of Richu's reign confirm a principle which received its first illustration when the Emperor Keiko put to death for parricide the daughter of a Kumaso chief, though she had betrayed her father in the interest of Keiko himself. Similar deference to the spirit of loyalty led to the execution of Sashihire in the time of Richu.

That this principle was always observed in Japan cannot be asserted, but that it was always respected is certain. In Richu's reign there is found the first clear proof that tattooing was not practised in Japan for ornamental purposes. Tattooing is first mentioned as a custom of the Yemishi when their country was inspected by Takenouchi at Keiko's orders.

It should be noted, as illustrating the influence of the Takenouchi family that, in spite of the shame she had suffered, the lady Kuro became the Emperor's concubine. In fact, among the four nobles who administered the affairs of the empire during Richu's reign, not the least powerful were Heguri no Tsuku and Soga no Machi.

The severest critics therefore consent to admit the trustworthiness of the Japanese annals from the third quarter of the fifth century. In the record of Richu's reign, brief mention has been made of the establishment of a Government treasury.

But in Richu's time it was employed to punish the muraji of Atsumi, who had joined the rebellion of Prince Nakatsu. He was "inked" on the face. It appears also that the same practice had hitherto been employed to distinguish horse-keepers, but the custom was finally abandoned in deference to an alleged revelation from Izanagi, the deity of Awaji, on the occasion of a visit by Richu to that island.