There are almost no records about Yasuke in Japanese literature.
Shincyokoki (Records of Nobunaga), Ietadanikki (Diary of Ietada), and records written by Jesuit missionaries. There are no other documents about him, and even if all the records about him written in these three documents are combined, they only amount to a few lines of information.
He was given to Nobunaga by Jesuit missionaries in 1581, and served Nobunaga.
In 1582, a retainer of another family witnessed Yasuke serving Nobunaga when Nobunaga's son went to war.
When Nobunaga died in a rebellion in 1582, he was captured by Mitsuhide, the leader of the rebellion, but was released because it was unbearable to execute such a beast-like human being.
That was all, and there are no records after that.
If Yasuke had been recognized as a samurai by the ruling class at the time, he would normally have been beheaded. Or he would have been released and served another samurai family.
Also, ignorant people are happy to lie and say that Yasuke was a samurai, served as a bodyguard for Nobunaga, or participated in battles, but there is no mention of such in existing primary sources.
All of this misinformation was fabricated by Thomas Lockley.