Fate/Grand Order: turas réalta

A group tasked with safeguarding humanity's future monitors a singularity, a point in time where the human race is predicted to go extinct by 2017. Rika Fujimaru and Mash Kyrielight are sent to Fuyuki in 2004 to address the issue. The manga follows their efforts to resolve the first, third, fifth, seventh, and final singularity from Part 1 of Fate/Grand Order.