The Internet, where anyone can easily come and go. In this virtual cyber world, a magical being with a will lives.... A strange rumor whispered among net surfers. It was a rumor that if one accessed the address "siren", he/she could experience virtual sex with a beautiful girl living in the Internet. In reality, however, those who access the address invariably disappear mysteriously. Ohtaka, who works for a computer software production company, heard this story from a colleague and at first thought it was ridiculous. One day, however, he goes missing, leaving behind a note with the address of "siren".

Siren the Ghost Story Returns

A raped woman appears before Kyoko. Natsumi, the boss of a gang of delinquents she knows, and her friends are also raped and humiliated by a rapist. Apparently, it is the same rapist. And it is a duo. As Kyoko and Natsumi begin to make their move, they discover that a mysterious beautiful girl named Emu is involved in the case. Kyoko also receives a letter from the rapist warning her about the case. Despite police security, Kyoko falls prey to the rapist, but manages to wound the perpetrator. However, a man is found dead with the same wounds... The case takes an unexpected turn when an unidentified person named “Dead Angry” becomes involved.