Gakincho Rape / Изнасилование гакинчо

Nanako and Kouichi.
The two always covertly met at their "secret place" on the way home from school.
Recently they'd started to date, and it was already a hot rumor in class.
They were young in love and were too embarrassed to even have a first kiss, though they wanted to.
The couple was happy to be together, and every day was lovely.
Always the secret place.
Always the same time.
But one day, a stranger followed them there...