Makoto almost stopped walking at the abruptness of the question. She'd been thinking about it, and it was as if Rei had read her thoughts - but it was Rei, why should she be surprised?
"I... we..." Makoto rubbed her forehead again nervously. "After the Earth was frozen, but before Crystal Tokyo came about, we had to... learn how to use our powers without transforming. Now.. I guess you'd say that Sailor Jupiter is always with me."