If you are looking for more details on this series, I can provide:
The hum of the Ginza district was silenced not by a bomb, but by the heavy creak of ancient stone. When the Gate appeared in the heart of Tokyo, it didn't just bring monsters; it brought a collision of eras. Youji Itami, a man who lived for doujinshi and anime conventions, found himself trading his hobbyist’s camera for a Type 89 rifle as a Lieutenant in the Japan Self-Defense Forces. gateanime-com-comov3-ardub-1080fhd-mp4
A (Itami, Rory, Tuka, and Lelei)