Yoshi was an individual who attended the University of Bar'leth on the Core Worlds planet Bar'leth during the Imperial Era. The human female Chelli Lona Aphra, an aspiring archaeologist, attended at the same time as Yoshi. The two beings were briefly lovers, but shortly after their first encounter, Yoshi became very sick with Wookiee flu. Aphra found its symptoms so disgusting that she did not continue the relationship.
Sana Starros, another human female pursuing archaeology at the university, became Aphra's lover afterward and knew that she had recently been involved with Yoshi and other beings. When Starros asked who else besides herself Aphra was seeing, Aphra initially joked that she could not keep track and shared why things ended with Yoshi, then confessed that she was no longer involved with anyone besides Starros.
Yoshi was mentioned within flashback sequences in the 2020 audiobook Doctor Aphra: An Audiobook Original, written by Sarah Kuhn. Although Aphra's co-creator Kieron Gillen describes her as a lesbian and Sana Starros said in-universe that "guys and Aphra don't exactly mix" in Star Wars 61, a comic book issue written by Gillen, Yoshi's gender and pronouns were not specified in Kuhn's story.
Yoshi was mentioned within flashback sequences in the 2020 audiobook Doctor Aphra: An Audiobook Original, written by Sarah Kuhn. Although Aphra's co-creator Kieron Gillen describes her as a lesbian and Sana Starros said in-universe that "guys and Aphra don't exactly mix" in Star Wars 61, a comic book issue written by Gillen, Yoshi's gender and pronouns were not specified in Kuhn's story.