Answer
The character voiced by Hosoya in "Sword Art Online" is Kazuto Kirigaya, the protagonist of the series. Kazuto, also known as Kirito, is a skilled virtual reality gamer who becomes trapped in the deadly game world of Sword Art Online. Throughout the series, Kirito navigates the virtual realm, forming alliances and confronting powerful foes as he strives to clear the game and return to the real world.