According to the Sankei Shimbun newspaper and the public television network NHK, the suspect had been posting on message boards threatening to murder anime director TATSUKI (first Kemono Friends anime, Kemurikusa), as well as a Kemono Friends voice actress (later identified to be Ishikawa), her family, and staff members, by stabbing and setting them on fire.
Fuji News Network reported on Friday that 25-year-old male Fukuta Kishimoto pleaded guilty in trial for threatening voice actress Yui Ishikawa (Mikasa in Attack on Titan, Kyururu in Kemono Friends 2).
The prosecution requested that the court sentence Kishimoto to 18 months in prison, adding that Ishikawa trembles in fear at night.
According to Sankei Shimbun and NHK, once the voice actress reported the threat to the police, the anime staff had temporarily halted work.