The other three girls thought for a bit. Hmmm... thought Misaki-chan Two great friends, very close, but separated by big mountain... Wouldn't that then be the logical answer?
She asked, "Is the answer to climb over the mountain? If they were close friends, they would go through any hardship in order to see each other. Or is that for lovers? Gah, I don't remember... So, is that the answer?"