Some of youre guys probably know, but i gonna type it anyways
This "fake" fans interrupted the the Yousoroad and KananRail. They (the people at VIP area) chanting and make something rude. There are various video of the scene youre guys can search from the title.
These people also give 18+ doujin and a bottle of semen (yup, semen...) to one of the seiyuus
Just to say my opinions, what kind of haters waste his money to VIP area and do stupid thing? You can just use those money doing good stuff imma right?