Light Novel Only I know they're women. (2) Kodansha Lanobako Library

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

It has been about half a month since my childhood friend Makoto and Shinobu, who were reunited after seven years, started living together. So far, I am the only one who knows that they are women. I'm getting used to the support of these two clunky little girls, and I might be able to graduate safely at this rate -- that expectation has already been dashed. I have decided to study at a hot spring inn with my daughters! I managed to avoid a mixed bath with my daughters, but I don't think I can avoid a mixed bath with Makoto and Shinobu! Furthermore, Makoto and Shinobu are going to be served as maid apprentices, and I hear a happy scream with tears in my eyes! Don't worry, I will protect your secret for sure! Something happens to my body with enthusiasm? In fact, it's the second round of Rem school love story with two girls dressed as men!