Since ancient times, the relationship between humans and the ocean has been quite deep. The reason why humans can progress and develop is also undeniable. However, while marine resources are being vigorously exploited, serious pollution has also followed. The increasingly frequent marine disasters have caused humans to suffer a lot. Squid Lady (voiced by Jin Yuan Shouzi) is a loyal resident of the sea. Seeing her home being destroyed, she couldn't bear it anymore and decided to teach humans a little lesson. Squid Lady, who had just arrived on land, was still a little unaccustomed. With a cute and confused loli appearance, she accidentally broke the wall of the Sea House before she taught humans a lesson. In desperation, Squid Lady had to stay in the Sea House as a part-time girl to repay the debt of wall repair. In the Sea House, Squid Lady met the strong-willed Eiko Aizawa (voiced by Fujimura Ayumu), the gentle and lovely Chizuru Aizawa (voiced by Tanaka Rie), and the lively and active Takeshi Aizawa (voiced by Otani Miki). For Squid Lady, although the plan to punish humans has not yet succeeded, it seems to be a good choice to be happy with friends like this.