The story is set in the year 2015, during the final era over which magic still held sway. The humanity survival and security organization Chaldea was established to observe the world that can only be seen by magic and the world that can only be measured by science — as well as to prevent the final extinction of mankind. 

Thanks to the efforts of many researchers, the path of human history has been ensured for 100 years into the future. However, without warning, the realm of the future that was under constant observation by Chaldea vanished. The extinction of humanity in 2017 was observed — no, confirmed. 

The apparent cause of the extinction was in the Japanese city of Fuyuki in 2004. In that city, there was an "unobservable realm" which had never existed until now. 

Chaldea issued the Grand Order for a "Holy Grail Expedition," to investigate, uncover, and possibly destroy the singularity that apparently will cause the extinction of humanity.
 
(Source: Anime News Network)

More like ジャンヌオルタちゃんの泥酔聖杯～その聖杯から零れ落ちる聖水を飲むのは僕～

Our Recommendations

Fate Grand Order

水着ジャンヌオルタとエッチ

Fate Grand Order

FGO落書き：ジャンヌオルタの処女卒業

Fate Grand Order

ジャンヌ・オルタ絶対落とすマン

Fate Grand Order

ジャンヌオルタをチン〇ス中毒にする絵

Fate Grand Order

Jeanne Alter-chan no Deisui Seihai

Fate Grand Order

Jeanne Alter-chan no Deisui Seihai

Fate Grand Order

-恥辱の魔女ジャンヌオルタ-服従魔力供給

Fate Grand Order

契約書の罠にはまりちんちんを挟む駄狐

Fate Grand Order

俺のジャンヌは性処理係

Fate Grand Order

アイツの為今だけだから…

Fate Grand Order

落ちても快楽には負けたくない

Fate Grand Order

我が家の水着ジャ◯ヌコスプレイヤーお姉ちゃん

Fate Grand Order

おちょこのめ壱の巻

Fate Grand Order

不親切な邪ンヌちゃんのバイト日課

Fate Grand Order

性杯転臨。~妙な形の聖杯を回収したら、ウチのサーヴァント達が孕んじゃいました。~

Fate Grand Order

ジャンヌちゃんのエッチな撮影会

Fate Grand Order

カルデあ。連結秘録その1

Fate Grand Order

清姫はマスターが帰宅すると早速くちま◯こで搾精!!しかし全然物足りずに騎乗位でもザー◯ンを搾り取る!!