As a child, Amata was judged or more less of a monster to society due to his power of flight and was left behined by his mother in his youth. He worked in a old theater and had a connection to an actress Alicia who went missing before the current events.
Amata really never had any conversation with anyone else but his boss, until he met Mikono at the theater where they became friends. Amata came down to thought of him and Mikono meeting was meant to be.
Amata also has this feeling of never letting his fate or destiny fly away. When he's excited or his heart races, he loses the control over his power of flight, the most occuring emotion that makes him fly is the emotion of Love.