OH! Stealth Shinshi ~Onmitsu Semen Koukai Nakadashi Gakuen~

“Stealth Ability: Tease That Girl You’ve Got Your Eye On… and Then Cum Inside!” The protagonist used to be the kind of kid who never stood out. But one day, he was selected as a test subject for a special ability development program at his school… Since enrolling, his test scores for special abilities had been lackluster, and he’d been living a quiet, unremarkable student life. Whether he was there or not, the world kept turning. “Practically invisible.” That was his place in the world. Then, one day, an online friend sent him a peculiar item as a gift. The “ESP Amplifier.” At first, he thought it was just a joke, but the moment he used it, his latent abilities awakened in an instant. He gained the power to manipulate others’ senses—including their arousal—and even render himself imperceptible. With this newfound stealth ability, he began using it to play naughty tricks on the girls around him. But things quickly escalated, and before long, the entire school—co-ed and girls’ schools alike—was caught up in a whirlwind of debauchery… [Translated from dlsite]