Y/n L/n was one of the best Masters who worked for Chaldea. At 17, he had been able to summons a whole harem of warriors who he loved and was loved in return. Together, their power was astonishing. But... What happens when one day all their work, all the love that was forged between them was broken in an instant? What if it just took one terrible event to make someone who was as bright as Y/n to become hollow?