Birthday Mail [バースデイメール]

A nasty new e-mail is making the rounds. It's not just a virus: open this message and you've got 10 days left to live! How does this all connect to a girl who committed suicide 10 years ago, and is there any way to break the deadly e-mail chain? The latest recipients of the lethal love note have 10 days to unravel the answer before their time is up!