Sing a Bit of Harmony (2021) - English Dubbed

The film takes place in a unspecified near future in a small Japanese town, which the technology company Hoshima uses as test site for multiple AI controlled systems and robot. The story follows high school student Satomi Amano, who lives with her mother, the Hoshima employed AI specialist Mitsuko Amano. After a past incident, Satomi is isolated at school, shunned by her classmates, and estranged from her childhood friend Toma. Her mother is preparing a secret test of a newly developed AI system, which is supposed to be indistinguishable from humans. In this test, the AI is to spend a few days in Satomi's class in a realistic looking robotic body as exchange student Shion Ashimori. Shortly after having been introduced to the class, Shion surprises everyone by recognising Satomi, asking her whether she is happy, and breaking into song. In the following days, Shion is bent on making Satomi happy. She helps Satomi find friends, helps these friends with their problems, and goes on to fix Satomi's relationship to Toma, all with the power of song. Meanwhile, it becomes clear that someone mysteriously manipulates the recordings of the school's security system and Shion's telemetry results to hide Shion's unconventional behavior from Hoshima. When the company eventually gets wind of this, Shion is violently taken in and prepared for deletion. But Satomi and her friends decide to rescue her, and Shion's mysterious link to Satomi is revealed.