釣りバカ～学園対抗！女子校生釣り上げアドベンチャー～

The main character starts working at a girls high school. But there is a unique tradition that they have a competition against a girls high school nearby as a mutual exchange every year. This year's event is "fishing". The more they flip up skirts, the more they get score points. Students object to it, but the competition starts....

[From Erogeshop]