[... But nah, it's neither of those; after a moment, she can't help her smile drooping into something more nervous, looking up at the ceiling instead of at Rohan.]

Well, y'know... Ibuki can't really feel the same about that. 'Cause she's so bad at remembering things...
If Ibuki doesn't write things down, she can completely forget what she planned on doing an entire day! It can be really fun; Ibuki makes a game of it, called "Will I Get There?"
I just leave the house and go wherever the wind takes me, and sometimes I end up somewhere real neato! Ibuki tried that here, and found a shop that sells fake monster parts!

... But, since memories are kind of fleeting, y'know, it means Ibuki doesn't need them that much, either. Sometimes there's stuff worth forgetting, anyway!
In Ibuki's honest and real opinion, it's better to live in the moment!

Aaaaaand, this is an important milestone for Rohan-chan, too! 'Cause Ibuki's apparently lost a lot of memories, and not just because she forgets things so easily!

[She'll just eek that in there at the end of what she's saying, yep.]