In Yakuza 6, where do I buy Gold Tuna?

[MaliableTick]

Looked everywhere but no luck

 

[DANDAN_THE_DANDAN]

Isn't this something you look up rather than wait in an internet forum for?

 

[negavamas]

The cat cafe.

What I am more interested in is why are you asking this instead of looking it up, it is the second search result for me and your same question in the PSN forums is the third.