Summary:

"Im going to do it, since you said you liked me."  Deeha is the assistant librarian of the city's female-only library.  And Lougene is a half-blooded wolf spirit and a childhood friend of Deeha.  On the night of the winter festival, the two cross the line of friendship and have a secret affair.

Notices:

This one is the official version, not the scanlated one