Rulan 12 was a Hermat who lived during the latter half of the 24th century.

During their educational years, Burgoyne 172 and s/he often got into trouble together. Despite Burgoyne's attraction to hir, they didn't pursue a relationship because Rulan valued hir chastity.

S/he was confronted by D'myurj who had disguised themselves as Hermat scientists who told hir that they were conducting experiments to lengthen the Hermat lifespan.

She agreed, and underwent injections and radiation until hir metabolism was hyper-stimulated. (NF novel: Treason)