It’s not a “song” in the usual sense
It’s a Japanese classical “Japanese song” from “Okura One Hundred Songs”
Eighty-Nine
「玉の情よ久えなば久えねながらへば人ぶることのよわりもぞする」/Prince Shiziuchi
Translated as:
This When the body must be destroyed, why should we hide it deeply?
"One Hundred Ogura Poems"
Waka is a poetic art that the Japanese nation can be proud of, and it is also a human being. Colorful flowers in cultural heritage. "Okura One Hundred Poems" is a representative work of Japanese poetry. It brings together the famous songs of one hundred first-class poets in ancient Japan over the past seven hundred years, and is the most widely circulated collection of Japanese poetry.