Gate: Jieitai Kano Chi nite, Kaku Tatakaeri is a 2015–2016 fantasy-action series, produced by A-1 Pictures, depicting the JSDF’s confrontation with a fantasy world following the opening of a mysterious portal in Tokyo. A new season, GATE 2: Tides of Conflict , is scheduled for 2027 by Studio M2, focusing on naval combat, while the series carries an R-17+ rating for violence and adult themes. Learn more about the series details at IMDb . Gate (TV Series 2015–2016) - IMDb