Aa

Shiro's older brother (nicknamed as "Aa" which means older brother in Sundanese) is a character that existed in the OlderBro!AU. He is a non-canon OC. His whole purpose is being the figure that Shiro looks up to, since he's the one who's taking care of Shiro after their parents died at the age of 15 years old (2 years after Shiro was kidnapped). Ever since that incident, he became overprotective of Shiro. He's not a really strict brother who prevents Shiro from being friends with anyone, but still keeps an eye on him if anything happens. He's really happy that Shiro could find friends that he can trust, which puts Aa's mind at ease. He is quite doting on Shiro too.