See post #5159639.
For his outfits, see the corresponding pages.
Lore-wise, he is the commanding officer of the Virtual Special Forces, a police organization dedicated to fighting virtual crimes. He's normally one of the quieter members of EN and doesn't tweet as often as his colleagues, but he's much more passionate when speaking Japanese or showcasing his voice acting skills, with Wakamoto Norio being his favorite voice actor. He also loves negi and being called "onii-chan," especially by Alban Knox.