Young Japanese law student; Kanzaki Daigami is cast into another world where a prestigious organization is broiled in an unforgiving and unrelenting civil war!
The only way to get back home is to achieve his destiny of becoming The Gatekeeper of Memories with the help of his friends Shikyo Yoshikawa and Treyton Bellegale.
Together, they will try to put an end to the conflict by collecting Memento Shards to restore The Grand Gateway which transported Kanzaki to this world in the first place.
Or, after all that will happen, will he even want to?
In another world, lies there an unforgiving civil war, between members who are now divided within a prestigious organization known as The Remembrance.
Grand Knights Treyton Bellegale and Shikyo Yoshikawa execute a heist that was supposed to be a "quick and clean job." However, after running into not one, but TWO groups of defectors, thing only get worse. Little do they know, their luck will soon turn around ...