|Kanji:||飯田 悟（いいだ さとる）|
Satoru Ida (飯田 悟, Īda Satoru) is an young man, who was sent to Area D due being an Altered. His power is Watchmaker, giving him the ability to disassemble to components every item he touches. He is the main protagonist of the story.
A medium height very lean young man possessing pale white skin, sporting a pair of glasses and having straight black hair. Wears a jacket with a white shirt underneath it and has a pair of blue jean pants. He carries bandages wrapped around both of his hands to conceal his powers enabling him to move about without dissmantling everything he touches. Appearing rather sullen since his confiscation and confinement due to his Altered status, he can show to be a bit more cheerful when around Jin and his friends.
A timid but intelligent young man. During the progression of the story he slowly come to term with his curse using his ingenuity to overcome his foes as he travel with Jin Kazaragi. Largely feeling insecure due to his sheltered upbringing and troubled past before arriving at Area D, counts himself as out of place within Jin group, yet feels thankful to be a part non-the less.
not yet known
Satoru Ida begins as the main character of the series, when we first see him he appears to be nothing more than a background character someone who doesnt seem to belong.
Watchmaker (Dismantling, 時計師, Tokei Shi) is the name of Satoru's Altered ability. With it, Satoru is able to disassemble or unmake any object that comes into physical contact with his hands. His ability is indiscriminate; it does not matter the object's size, complexity of composition, or whether it is living or non-living - if Satoru touches it, it can be dismantled. After accidentally dismantling his mother, due to lack of control, and killing her, Satoru keeps his hands wrapped in bandages in order to minimize any possible, similar situation. At present, Satoru still has difficulty effectively controlling his ability.