Erina's Links
He is Erina's boyfriend from shortly after they graduated together. During school, he'd had a crush on her but hadn't had the guts to confess - and had been too focused on his studies. They considered each other friendly rivals, and worked together well. They ended up interning together, and joined the same agency after they graduated. On their first mission together, he ended up confessing in the middle of a fight, in the heat of the moment. Erina called him an idiot, but said it was mutual
They have been dating ever since, and eventually formed their own agency together