Rena managed to calm the people down with her song, but it was only for a moment. When people who were inside the buildings started to go out, panic ensued again.
Even when other people warned them that they couldn't leave the area or their heads would pop like a balloon, some people didn't believe it and chose to ignore the warning.
As a result, their heads exploded, and everyone came to know about Charlie's attack, turning the situation more chaotic than before. The pink-haired girl looked sad and decided to leave the stage after her shout didn't work anymore. She entered the middle building while walking slowly.
Rai watched all of that and sighed in exasperation. He felt rather conflicted right now.
Inside, he just wanted to massacre those who wasted Rena's effort, but he had no weapon to do that instantly, so he just forgot and pushed it deep inside his mind. What fun was it to massacre those people? He rather played with Magical Girls more and corrupted them.