Oh Buffy! Tell me what Yotsuba needs to bring to the moon okay? It's really serious so Yotsuba wants to do this really seriously.

[She takes her journal and turns it to face her bed. On it are said fluffy coat she received from jack, a rain hat, a pair of galoshes, her water pistol and some candy. Space rations.]

Yotsuba is prepared! It's what you do when you make a plan, you make sure you're prepared.