She bought me this back after Mizuki got here...she thought it was better that we both be kept somewhere it was easy for her to keep track of us, for all neither of us are really ever here anymore.

[It's pretty classily furnished, for all Riku's claims of never being there, and the photos around appear to be mostly ones Mizuki keeps of Rikus of all ages, although there appear to be a few of Riku's old school photos in there, and Lumi's in a couple...

There is also a friggin' gigantic piano which is probably Mizuki's, and about eighteen fuckbillion robot models.]

...His decorating sense never did change from when he was twelve.