Fgo. Today, I Must Also Be a Good Master.

This is the story of alter Murasaki Shikibu, the girl in the parallel world. Wasn't it that Murasaki Shikibu, the final boss+, was lucky enough to become Mr. El-Melloi's best student in a parallel time and space, but accidentally became the last Master of mankind? The girl Murasaki Shikibu said, "Why are you fat? Will the future of mankind fall into the hands of me, who may become a high-powered anti-social boss?" ! But the group of male heroic spirits in Chaldea who secretly admired her said, "Girl, you are truly the best Master I have ever seen." Then the clueless girl Murasaki Shikibu who was blown away said, "I must work harder." Knowing that she had summoned herself with various heroic spirits, the girl Murasaki Shikibu realized that things were far from being as simple as she imagined.