The Guy She Was Interested in Wasn't a Guy at All, Vol. 4

On the night of their winter prom, with graduation drawing near, Mitsuki and Aya have finally taken their relationship to the next level! After being such close friends for so long, loving each other feels like the easiest thing in the world. But before they have the chance to bask in the wonder of it all, Aya's college entrance exams creep up on her...