An artist-turned-indievirtual YouTuber. A sweet-loving girl who calls her fans/listeners "nii-nii" (shortened from "onii-chan"). She is a fast learner who've learned English and Spanish to communicate with her fans, as well as had a sizeable knowledge of western meme culture.
Her original appearance consist her wearing a serafuku with a beret with a 4-leaf clover symbol on it. She has a medium-length brown-hair in low twintails and brown eyes.
On August 29, 2020 Hiyo debuted her new character design. Aside that her hair becomes slightly messier and thicker is she has cat ears and cat tail, as well as a 4-leaf clover shaped pupil. She now wear a dress with a buruma underneath along with white thighhighs.
Her third design, revealed on February 2021, consisted of a white jacket, a pink camisole and a pink short pants.
Her fourth design features a much smaller figure (akin to a child), wearing a pink dress and with a shorter hair.
Her fifth design, revealed on Christmas 2022, features a drastic character change, as she is now depicted as an adult with large breasts and very long hair. Her outfit consists of a black-and-white china dress optionally worn over with a off shouldershort dress.
