Inu-Oh is born with unique physical characteristics, and the horrified adults cover every inch of his body with garments, including a mask on his face. One day, he meets a boy named Tomona, a blind biwa player, and as Tomona plays a delicate song of tangled fate, Inu-Oh discovers an incredible ability to dance. Inu-Oh and Tomona become business partners and inseparable friends, using their creative gifts to survive on the margins of society, as song after song gain them notoriety and propel them to stardom. Through the songs, Inu-Oh mesmerizes his audiences on stage, and gradually begins to transform into someone of unequaled beauty. But why is Tomona blind? Why was Inu-Oh born with unique characteristics? It is a story about the friendship of Inu-Oh and Tomona, who dance and sing to get to the truth and break each other's curse.

At a CD store, Ichika Hoshino hears a song by Miku that she has never heard before. On the monitor, she sees a "Hatsune Miku" in a form she has never seen before, and couldn't help say it out loud, "Miku!?" Miku was surprised at the voice, her eyes meet Ichika's, but she disappears shortly after. Later, after a live performance on the street, the Miku that Ichika saw before appears on her smartphone. Miku looks sad and downcast, and when Ichika quietly asks Miku about her story, she tells Ichika that there are people to whom she wants to deliver her songs, but no matter how much she sings, her songs are not reaching them. Miku, who saw Ichika singing to the hearts of many people at her live performances, thought that if she learns more about Ichika, she can do the same, and came to Ichika. Ichika smiles at Miku and says, "If it's all right with me." And a new story of Hatsune Miku and the boys and girls begins—.

Kai, a young middle schooler, lives in Hinashi Town, a lonely fishing village, with his father and his grandfather, a sun-umbrella maker. He used to live in Tokyo, but after his parents divorced he moved back to his parent's home town. Kai has trouble telling his parents the complicated feelings he has for them, and he's lonely and pessimistic about his school life. One of his joys is uploading songs he writes to the internet.

One day, his classmates Kunio and Yuuho invite him to join their band, "SEIRÈN." As he reluctantly follows them to Merfolk Island, their practice spot, they meet Lu, the mermaid girl. Lu sings merrily and dances innocently. As Kai begins to spend time with her, he starts to be able to say what it is that he's really thinking.

But since ancient times, the people of Hinashi Town have thought that mermaids brought disaster. Something happens that puts a huge rift between Lu and the townspeople. And then, the town is in danger. Will Kai's cry for the heart be able to save the town?

(Source: Fuji Creative Corporation)

An anime movie based on HoneyWorks' LIPxLIP virtual idol unit, commemorating the music circle's 10th anniversary.