Let This Grieving Soul Retire, Vol. 4 (manga)

Although Krai and crew may have gotten out of the White Wolf’s Den alive, it’s too soon for celebration—something even more dangerous may have escaped with them: Sitri’s Slime! But while Krai is preoccupied with the elusive monster, another brewing threat decides to make its move. Can Krai handle the looming crisis—even if he doesn’t realize the trouble he’s causing all around him?