Your Majesty, the Princess Needs Me!

Yvette, a human kindergarten teacher, is unexpectedly transported to the mermaid realm, where she transforms into a lowly "Grey-Scale" mermaid and awakens a special system that allows her to hear the inner thoughts of the young Princess Ariel. Armed with this ability, she uncovers a plot involving tainted food, exposes a treacherous steward, and repeatedly saves the persecuted princess, rising from a menial servant to become the princess's dedicated caretaker. King Kaelen, a stern and aloof ruler, shifts from initial skepticism to admiration for Yvette's intelligence and courage, eventually falling in love with her. Meanwhile, the ambitious Noble Consort Undine and her sister orchestrate a series of malicious schemes—disrupting the palace through a royal selection process and even summoning a projection from the Abyss in a bid to overthrow the monarchy. Faced with the chance to return to the human world, Yvette chooses to stay; she stands side-by-side with Kaelen to confront the Abyssal threat and thwart the villains' plots. After weathering numerous storms, she shatters the prejudice against Grey-Scale merfolk, wins the approval of the Queen Mother, and becomes the Mermaid Queen, finding both love and a true home in this alien world.