[Nana absolutely knows what a cellphone is and claps her hands once, in approval, her banana bangs bobbing as she nods]

Perfect, Akane-chan! That will make this much easier.

[Though yeah, given how dim it is and how much they might have to explore, finding more lighting would be ideal. She looks left and right, then back to the other girls]

Should we look around for another light source? We might find something...