No interest in having Shizuha tag along for this? I'd feel bad leaving her behind and only involving her sister, especially after what she said about her ability not being useful. (It might actually be good to have one of each of their manifestations follow us around at all times, so they're the first to know if any new developments arise.)
> "Mmm...forgive my rudeness, ladies, but I wish to try something myself really quick."
> We're currently what, four meters tall? Grow ourselves (including clothes and possessions) another two meters.