Kayna

Kayna was a nurse working for Daisuke Ido at Farm 21 who had previously worked in Desty Nova's lab. Kayna did not develop the same fanatical devotion to Nova that characterized Barzarld and Eelai as she feared and despised him. During her time with Nova she was subordinate to Eelai. The previous relationship between Ido and Kayna was a close one. She accompanied him after he left Desty Nova and he entrusted her to show anyone from his past who came looking for him a video recording detailing how he had erased his memory after they had settled at Farm 21. She was very protective of Ido and cared about him a great deal, although he remained unaware of her feelings as the relationship remained largely platonic. Much later it is strongly implied that she was about to confess her love for him during the Battle of Farm 21, but was interrupted. Although she initially tried to get Alita to leave Farm 21, Kayna helped her by pretending that she was a fellow capoeira student and later giving her Ido's video recording to view after apologizing. She sympathised with Alita after the latter was forced to leave without Ido recognizing her.