Haruka Kujo

This wealthy, eleven-year-old American graduate is the heir to the Kujou family, renowned for their use of yin and yang-based daemonic experimentation. Seeking redemption for his lineage's past, he joins Akira in battling the Kokuchi, despite lacking physical combat skills, utilizing a crossbow. He forms a deep bond with Kou and is affectionately called "Onii-chan," making him a key figure in the narrative.