Senna'Nir vas Keelah Si'yah

Commander Senna'Nir vas Keelah Si'yah is the First Officer of the Andromeda Initiative vessel Keelah Si'yah. He also heads the Sleepwalker Team Blue-9 maintenance crew that periodically revives from cryosleep to check on the ark's systems and passengers.

Background
Senna undertook his Pilgrimage among the elcor. On Dekuuna he learned about batarian social cues from the few he saw there, and on Ekuna he met and befriended the doctor Yorrik. Hearing about elcor combat VI from Yorrik, Senna made an amateur system from scratch as his final test. He and Yorrik went on a pub crawl at New Elfaas City to celebrate afterward, steeling his body for weeks beforehand in order to take just a single shot of ryncol.

Upon his return to the Migrant Fleet Senna was assigned to the mid-range freighter Pallu'Kaziel. He entered into a relationship with shipmate Qetsi'Olam vas Pallu'Kaziel, which was met with the approval of his grandmother Liat'Nir vas Achaz. He followed Qetsi in joining the Nedas Movement, though eventually he became disinterested in politics while she rose up the ranks to become a leader of the movement. Ultimately Qetsi left him for the anti-geth hardliner Telem'Yered.

At some point Senna was assigned to the liveship Chayym. In 2183 Senna and his parents got to visit the Citadel because the liveship and two other vessels were there for repairs. He took advantage of the free time to look around. He explored the Lower Wards, haggled with hanar on the Presidium to swap a new Reegar Carbine for a tank of mindfish and old contra-gravitic levitation packs, loitered outside the Embassy Lounges tinkering with a volus enviro-suit he traded for the mindfish on Zakera Ward. It was there that he witnessed a gigantic geth ship looming over the Citadel and an invasion force of geth began attacking the station.

After the battle Senna became disillusioned with his passive acceptance of things and started tuning in to Qetsi's views again. When they learned about the Andromeda Initiative Senna accepted Qetsi's offer of being her first officer, then contacted Yorrik if he would be amenable to a bar crawl stretching between galaxies. He returned to Pallu'Kaziel after the Citadel, though he felt some sadness when his name was removed from its roster upon his commitment to the Initiative.

Unusually among quarians, Senna had an affinity for machines and artificial intelligence and thought his race's bad parenting were to blame for their current exile. He suspected Telem was made the quarian Pathfinder instead of him precisely because Qetsi knew about his sympathies. What he never shared with her however, or with anyone outside his family, is that he possessed an intact (and highly illegal) ancestor VI of his great-grandmother many times removed, Liat'Nir.