Osora is a Japanese manga artist known for creating the series Naka no Hito Genome [Jikkyōchū], which is published in English as The Ones Within. The manga began serialization online in 2014 on the pixiv Comic website and is published in print by Media Factory under their MFC Gene Pixiv Series imprint. As of available records, the series has been collected into ten tankōbon volumes. The manga is classified with a shōjo demographic.

The series received an anime television adaptation produced by the studio Silver Link. The anime, directed by Shin Oonuma, aired for 12 episodes from July to September 2019. A subsequent original video animation episode, titled Naka no Hito Genome [Jikkyōchū]: Knots of Memories, was released in 2020. Osora is credited as the original creator for both the television series and the OVA.

Naka no Hito Genome [Jikkyōchū] is a mystery story centered on a group of young video game streamers who are transported into a real-life game world where they must complete dangerous challenges for an online audience. The narrative focuses on the group's survival as they navigate these trials while confronting their individual pasts and personal secrets. The premise combines elements of suspense, psychological drama, and the aesthetics of online gaming culture, which form the core of the creator's artistic identity in this work.