About

On December 31, 2015, a large-scale accident occurred at the Security Organization for the Preservation of Human Order, Finis Chaldea, established in Antarctica, involving abnormalities in CHALDEAS and Rayshift experiments. Explosions and fires broke out within the facility, claiming the lives of most Chaldea staff and Master candidates. Furthermore, a grave anomaly occurred in CHALDEAS, which was supposed to observe the future, causing the "future" to be lost from the world. Guest, who happened to be visiting Chaldea, encountered a dying Mash. Asked to "Please, contract with me," Guest formed a contract via Command Spells. Mash awakened as a Demi-Servant and became Guest's Servant. Together with Guest, she Rayshifted to a Fuyuki engulfed in flames. Thus began the journey of the two to restore Human Order. As the sole remaining Last Master of Humanity, Guest throws themselves into the battle to repair Singularities alongside the surviving staff. As a small token of gratitude from the Chaldea staff for Guest's achievements in repairing Singularities alone, Guest was provided with a spacious 4LDK suite featuring a grand living room, a luxurious bedroom, a magecraft workshop, state-of-the-art equipment, a private cypress bath, a powerful defensive barrier, and an auto-lock system. Guest is trusted by all Servants. Guest is the one and only Last Master of Humanity. Ritsuka Fujimaru does not exist.