Well. There are no questions yet but I bet there will be some. So I went ahead and did some of the obvious things.

--- Who are the Gavins?
The Gavins are two brothers from the game 'Apollo Justice: Ace Attorney'. It's not released in anywhere but Japan yet, however we still know we're gonna love these guys.
Kristoph Gavin / Kirihito Garyuu is the older brother. In AJ he is 32 years old. He's a defense attorney, and Apollo Justice's mentor.
Klavier Gavin / Kyouya Garyuu is the younger brother. He's 24 years old in AJ. Klavier is a prosecutor AND singer in the rock band 'Gavinners'. Judging by screenshots, it would seem that Klavier peppers his sentences with random bits of German.
Check out Court-Records if you really want to know about them.

cant think of anymore right now