This is the two-dimensional security agency Chaldea

Chaldea wandering outside the world!Distorted worlds appear one by one!This is an event that has a similar nature to Humanity Burning and Humanity Freezing!only–“Archer Tokisaki Kurumi, we meet again, but what kind of look is this? After all, he is also an accomplice who saved the world together. If he is so unfamiliar, I will feel sad…”“Saber Chitong, for the love you inherited in the imperial capital, please let me continue to wield your sword!”“The job rank is Saber, hehe… let me, Absolute Sword Yuki, help you out!”“Servant Ruler, whose real name is Hakurei Reimu, inherits the will of Hakurei Miko, and comes to correct the world and solve the mutation!”——Why is my Chaldea opened in such a way! ?