The story is set after the destruction of Master Yuuji, and the manga will reveal "another page in the history of the galaxy." Source: ANN

Fujishiro Natsumi, who possesses precognitive abilities, is transported to another world by the mysterious transfer student, Marishiro...! Haruki, who follows his sister to this other world, encounters a shining sword while fleeing from monsters. A legendary romance unfolds as Haruki, chosen by fate to become the Golden Knight, takes center stage!