I've never had a girlfriend. The app installed on my phone was a hypnosis app that could control anyone. After testing it, the app's power was real. With this, a harem life isn't just a dream. "Why do all the girls I target have troubles?" A beautiful gal, a plain girl with hidden beauty, a cool ojou-sama junior—by the power of the hypnosis app, their secrets that they couldn't tell anyone are revealed! (I just wanted to do erotic things.) The self-proclaimed loser, but fundamentally a good-guy protagonist, ends up running around helping people!