Adult PC Game: Momichichi Gakuen Hatsujouchuu by Armadillo Archive

Since Naoki is just a quiet student, no one cares about him. He is in love with Miku. He always thinks about her (about erotic things). But one day, his life suddenly changes.... Some contact lens are sent to him. The manual says, "1. Your presence will be unaware once you wear them. 2. If you touch a girl you want to have sex with, she will feel sexually excited. 3. If you love a girl, she will love you, too." He doubtfully tries it...

Momichichi Gakuen Hatsujouchuu by Armadillo Gameplay Preview