readnovel

In the year 2016, a strange portal opened up in the middle of Tokyo, Japan. Strange medieval warriors poured out of the portal, and began massacring civilians. The modern police force ultimately neutralized this medieval force, but Japan responded with an all out invasion of the country on the other side, discovering and dominating the empire that had attacked them along with a greater fantasy world. Ultimately turning the Saderan Empire into a puppet state. Years passed since then, and Japan slowly expands into this new realm through the portal.