Ah, Ghost

There's an urban legend that goes: “If you watch a certain video online, you'll die within three days.” The main character accidentally sees this cursed video, and soon strange, supernatural events begin to occur: TVs turn on by themselves, phones ring in the middle of the night, and finally, the legendary evil spirit—Saya-sama—appears.
Saya is powerful and dangerous: a single touch from her drains your life force. However, despite the threat, fear gradually gives way to curiosity and desire. And now the question is: will she kill you, or will you manage to subdue her in the course of an erotic battle?