Mei made a promise with Charlie that he would return her to her time on the next full moon, but she's starting to feel that she would rather stay in the Meiji Era with Ougai. Meanwhile, having started writing his next novel, Ougai has shut himself up in the study to focus. The story he writes is meant to be a love story, but his writing isn't progressing as he would like and Ougai's countenance is getting gloomier. Ougai's past is hidden within the story.
It's not much longer, Mei-chan, 
till the full moon.
No falta mucho
para la luna llena, Mei-chan.
No falta mucho
para la luna llena, Mei-chan.
Manca ancora poco, piccola Mei...
Intendo alla luna piena.
Não falta muito para a lua cheia, Mei-chan.
Мэй, уже совсем скоро…
взойдёт полная луна.