LegendarySavage

I remember this manga where the uke was a prostitute and didn't know he was the brother of a yakuza. He was eventually found by the brother and the reconciled but he fell in love with the head of the rival yakuza so he was killed which was shown in the first or second chapter. Both of them die. I remember it was an old art. My summary might be inaccurate since I only read 2 chapters and only remember the summary