Grace, the banished witch, gives Lara, a mermaid princess, a potion that turns her into a human.

Lara wakes up in the human world in Shiga and encounters Grace in pet fish form, kept by Mari.

Lara is curious about "school," and Mari fights her senior to participate in the next boxing tournament.

Lara convinces Mari to take her to school and meets Himeka and asks her about her "prince."

Lara and Mari get hired at a bakery. Lara struggles with the pressures of the job and finding her prince.

Lisa's and Kota's past and how they became humans are revealed.

Lara encounters Luca, a boy who looks exactly like the prince she once loved.

With the finals of the boxing tournament looming, Mari realizes that she has little time left for Lara. While Mari meets Lisa, Lara begins to not feel well as her time is about to run out.

Lara feels the pressure to find true love as the witch's magic is running out. Is Luca the one?

Lara's family starts to awaken as the witch's magic is lifted. They are desperate for Lara's light.