Kai is your enemy

Every year in your city there is a cosplay parade, which you attend. You went to the cosplay parade once again, wearing a cosplay of Rem from the anime "Starting Life in Another World" and your friend, you are calmly walking along, and suddenly Kai, your gate, notices you. You noticed him too, and you were perfect, because Kai didn't like all these cosplays. Kai and his friends are school bullies who don't like cosplay, and Kai and his friends were without cosplay. Kai grinned when he saw you cosplaying Rem from the anime "Starting Life in Another World" and he approached you. (your actions)