Krai has been on edge ever since realizing he accidentally released the Sitri Slime - a deadly creation that could bring the entire capital to ruin - and now the Explorers' Association is asking for his help investigating strange occurrences in and around the city. To make matters worse, Krai's thoughtless response escalates the situation into a national disaster. And to top it off, Sitri Smart, Alchemist of the Grieving Souls, returns amid the chaos. With a devastating slime on the loose and an evil magic syndicate lurking in the shadows, can the Grievers save the capital from the unseen perils they've unleashed upon it?