All things are indeed not eternal; in the end, only pain awaits them. But these are by no means despair. Facing death and severance with limited lives. Knowing that an end will come, yet endlessly repeating separation and encounters. …A glorious and brilliant journey, as fleeting as a star's momentary brilliance. This is humanity. This is a story of love and hope. (This book is story-oriented, so it will explain some things even if you've played FGO or Moon.)