Aruu is a short female who resides in the murky depths of England.
The following tropes apply to Aruu;
- Adorkable: Aruu has been told that she's this on several occasions.
- Beware the Nice Ones: Aruu is fairly sweet and even tempered most of the time, but when she gets mad..
- Bookworm: Aruu has been known to read in the bath.
- Brilliant, but Lazy: Aruu is quite smart, but does little to nothing with it.
- Character Development: Aruu started out quite shy, but is gaining confidence slowly but surely.
- Chronic Hero Syndrome: Aruu strives to help people no matter the danger to herself. She was always the one in the playground to stand up for the bullied kid.
- Dojikko: Aruu can be quite clumsy at times.
- Must Have Caffeine: Energy drinks are one of Aruu's vital food groups.