Where is the manga 'gokushufudou'?

I found it before by searching the tags or genre, I used yakuza I think. u cant find it by searching the title don't know why.

heyo just adding to this, mangago has started hiding stories that are popular so the creator wont see it!
if you want to find something and cant see it, you can do the following:
— search the full name on the search bar, instead of clicking the suggested one, click enter and then click the manwha/ manga.
— as well, you can always ask for help in the questions and someone can find it!

Thank youuuuu

Thanks a lot (=・ω・=)