User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-30314236-20170329170644/@comment-27971189-20170330170035

I don't know why that Hanged ??? is "Hanged Phone" by head.

Hanged Phone - A

A fundamental ability of modern era to maintain free time and/or holiday, combined with Clairvoyance, this skill can be peerless; come with its own risk, one should use it carefully. Sometimes used to represent horror scene.

Joke aside.

It said historical fact but it just feeling weird.

Is this Berserker a folklore created on Halloween based on certain incident?