It's exactly as you described it. Even our own mother couldn't keep track of us.

[He tilts his head back with a grin as though that's funny to him, but it... isn't.]

We were a unit. Inseparable. The Terrors of Tokyo! [Or at least of the Akatsuka ward. But hey, nothing wrong with a little embellishment for the sake of a good chapter.] Everyone knew us by name. ...That name was usually Kuzu's, but-! [He snaps his fingers.] We were proud to be Kuzu's brothers!

But that was before I realized that I could be known as somebody else, too. Shall I continue?