: A highly intelligent human mage who learns Japanese and acts as a primary translator.

: An immortal demigoddess and apostle of the god of death, known for her massive halberd and combat prowess.

is a military fantasy "isekai" series that explores what happens when a portal to a medieval fantasy world opens in modern-day Tokyo.

: After a surprise invasion by fantasy creatures in Ginza, the Japan Self-Defense Forces (JSDF) push back and establish a base on the other side of the "Gate" to conduct reconnaissance and diplomacy. Key Characters :

: A 33-year-old JSDF officer and hardcore otaku who leads the Third Reconnaissance Team.