The terrorist organization known as the Animal Liberation Alliance (ALA) attacked a biological research institute and rescued a pregnant chimpanzee. That chimpanzee gave birth to a "humanzee" (half-human, half-chimpanzee) who was named Charlie. After being raised by human parents for fifteen years, Charlie enters his first year of high school. There, he meets the intelligent but socially misunderstood Lucy.

---
- Won the 25th Japan Media Arts Festival Excellence Award in 2022
- Won the 15th Manga Taisho Award in 2022.