Miss Kobayashi's Dragon Maid. Volume 4

Before Kobayashi-san, content with her new life under Toru's watch, appears the fierce dragon girl, the Destroyer Ilulu! The only one who can protect the beloved mistress from Ilulu, who is consumed by a thirst for destruction, is Toru.
But will Ilulu, who has been taught since childhood that humans are enemies, be able to believe in the sincerity of their bonds? The continuation of the popular otherworldly comedy!