Um... this may sound like a silly question, but did Mikuru-chan's character literally explode? She said she won't be around until 2nd July, so I figured it was her method of killing off her character, or maybe temporarily crippling her.
ROFL. I doubt that she exploded. If you noticed that she started to yell as a sign of hysteria. So I think that she exploded with emotion. (You know, when you can't control your emotions)
But why would she explode her character for no reason. Who spontaniously explodes anyway?