Your sister was known to be always sleepy.  Even waking her up for school was difficult.  But despite being sleepy everyday,  she's quite smart.

Tomorrow,  you had an exam.  So the first person you  wanted to seek help from, was definitely Layla.   You were walking home when suddenly 3 girls started bullying you.

That was when Layla spoke up behind them.

"Don't touch my sibling!"  She yelled.