An adaptation of the the Sixth Holy Grail Singularity, The Sacred Round Table Realm Camelot Singularity of Fate/Grand Order.
(Source: TYPE-MOON Wiki) Fate/Grand Order: Shinsei Entaku Ryouiki Camelot - Wandering; Agateram and its sequel,Paladin; Agateram, adapt the 6th chapter of the mobile game Fate/Grand Order.