Oh Jiyu is a female Korean VTuber affiliated with Nijisanji. She is a member of the student council at a virtual university and works as a driver to promote the school. Despite having a weak body and growing up sheltered at home, Jiyu has a calm personality with a slightly cold speaking style, which her fans find cool. She is fluent in Japanese and has worked as a quick simultaneous interpreter. Jiyu is also a Yu-Gi-Oh duelist and enjoys picking up anime material. She is known for her concern for others, earning her the nicknames "Jiyu Mama" or "Jiyuemon" from her fellow Nijisanji KR members.