Shinryaku! Ika Musume

In a world where the ocean has been ravaged by pollution, a squid girl named Ika Musume seeks revenge against humanity for desecrating her home. With a mission to invade and dominate the human world, she emerges from the sea, only to find herself woefully unprepared for life on land. After accidentally damaging a beach house, Ika Musume is forced to work there to pay off the damages, marking the beginning of a series of humorous misadventures as she navigates the complexities of human society and confronts the consequences of her own actions.