[Ren rarely hesitates to talk about Vanguard, and some of the symbolism in deck choices might be lost on someone who doesn't play the game, so he brightens up a bit at the opportunity to explain. He's well aware of Juno's occupation and that it's probably at least in part a press for more information, but Ren supposes he can give him a tidbit or two...]

That's right. Tetsu plays a clan called Dark Irregulars, there's lots of vampires and demons and things in that deck...and Aichi-kun plays Royal Paladin. [That might already be noteworthy if Juno remembers Ren introducing his own group as "Shadow Paladin", but Ren offers a slightly knowing smile, as if gauging exactly how much he wants to give to Juno here.]

His avatar is Blaster Blade, Blaster Dark's counterpart on the side of light. [In other words, a direct mirror to the card Ren had described as his own avatar. If the game has the significance Ren's descriptions of it so far would imply, it's possible to guess that there's importance to that connection as well.]