Gate - Jietai Kare no Chi Nite, Kaku Tatakeriゲート―自衛隊彼の地にて、斯く戦えり; 自衛隊Gate自衛隊于彼地戰鬥; Gate - Thus the JSDF Fought There!; Gate: Jiei-tai Ka no Chi ni te, Kaku Tatakaeri; Gate: Jieitai Kanochi nite, Kaku Tatakaeri
A gate appears in Tokyo's Ginza district sometime in the 21st century. From the gate pours out monsters, knights from middle-age Europe, and other fantasy-like beings, and they kill many of the citizens of Tokyo. This event is known as the Ginza Incident. The government sends a small group of soldiers from the Japanese Self-Defense Forces to the alternate world beyond the gate. Led by otaku soldier Yōji, they find that the villages in the world are being attacked by a dragon. An elf girl who is a survivor from the dragon's rampage joins the group in their travels across the dangerous new world.