Weird

When asked to describe Sin Shigaraki there was a simple word.

'Weird'
She was a normal girl in E-class is what most would think, But if you've been around her enough or read into her history, You'd think she was anything but normal. She was a 'genius' one of the- if not the smartest kid in Japan. But she always acted like a complete idiot. She would be a rebel and skip class. Eat ice cream anywhere. Express herself in any way she found fit, Such as drawing anime on the walls or using super glue to stick pocky on desks to spell things out. It was really no wonder why she was put into E-class. But the question is, Why does she act this way?