I've only read the pre-serialization version, but there is a spot where Yoko gets winded just trying to keep up with the song and dance of the fellow idols, and takes up running.
Also, why does the killer even have poison? Ostensibly, the poisoning was only planned after second victim noticed something and started threatening the killer.
Baphomet is old enough to be out of copyright. The particular statue of Baphomet copied by "Sabrina the Teenage Witch" was copyrighted by the Satanic Temple.
@blackbird: Read chapter 1, pages 24 and p25.
p24 Saki: Right now, Nanase-Senpai is on her world tour, working as the chief purser of a big aircraft company...
p25 Text message: I've landed in Paris safely! Hajime-chan, have you eaten?
Has there been anything about what happened to Reika?
And it's probably going to fail because the killer manages to say things that are still true. (Also, some innocent person is going to be forced into making some false statements which seem incriminating.)