JK to Ero Giin Sensei Episode 1 , English
Based on the game by Blue Gale Light. (Recommend checking them out, plus it explains the "plot" a lot better)
While staying in an old travel lodge, a minor Diet member meets Hatsune. Wearing a school sailor uniform and black stockings, this seemingly well-bred long-haired beauty falls in love with his gentleness and inevitably confesses her love to him...