Sokuhame! Saimin Cheat de Yarimakurutsu

Takumi Suzuki is an unremarkable high school student who stumbles upon a mysterious "hypnosis mask" that grants him the power to hypnotize anyone with his voice. Testing it on his childhood friend Sasai Nishiori, he is shocked to discover the hypnosis is real—when he orders her to fall in love with him, she becomes irresistibly aroused and makes advances on him.

Emboldened by his newfound ability, Takumi begins using the mask to manipulate those around him for his own pleasure. As he explores the limits of his hypnotic power, he finds himself entangled in increasingly explicit situations with various women, all while trying to keep his secret safe. But as his control grows, so do the risks of his actions spiraling out of hand.