I will kill Karasawa Takahiro
The hexagrammaton is a Japanese phrase "唐澤貴洋○す" (Karasawa Takahiro ****su). It means "I will **** Karasawa Takahiro".
Overview
The hexagrammaton is one of the popular phrases for death threats to Lawyer Karasawa Takahiro. It is also called "karakoro" for short.
Another famous phrase used for the same purpose is "karanamé", which stands for "唐澤貴洋弁護士をナイフでメッタ刺しにして○す"( Karasawa Takahiro bengoshi-wo naifu-de mettazashi-ni site ****su, lit. I will **** Lawyer Karasawa Takahiro by stabbing him with a knife)