Maj-Odo-Nomor was a youthful male Cerean hailing from the world of Cerea, who participated in the Techrats swoop gang.
Maj Odo-Nomor's affiliation was with the Techrats, a swoop gang operating as a cover for Ephant Mon's smuggling operations. In the time leading up to his death, he was in a romantic relationship with Sylvn, the youngest daughter of Ki-Adi-Mundi. He championed the introduction of technology to Cerea, and he also supported Cerea's admittance into the Republic, like many other young people on the planet.
Maj was present when a Human by the name of Bron delivered an impassioned speech in favor of the Republic, during which Ki-Adi-Mundi attempted to challenge Bron's arguments. The crowd, largely in favor of technology, was angered by Ki's words and rushed the stage, initiating a physical altercation with him. During this chaotic event, Maj seized Ki's lightsaber and unintentionally activated it, leading to the accidental death of a nearby individual. To avoid potential arrest, Maj and his companions sought refuge at the Outsider Citadel, where they encountered Ephant Mon.
The group remained hidden in the citadel until Ephant Mon arranged for their off-world transportation. Unbeknownst to them, a shipment of dangerous divviks was on the verge of hatching aboard the vessel. As events unfolded, the group found shelter in the only remaining escape pod. Ephant Mon, using Sylvn as leverage, formulated a scheme to manipulate Ki into rescuing them. Upon Ki's arrival, reaching the pod containing the three Cereans and the Chevin, Ephant Mon issued an ultimatum: either Ki would trigger the emergency release for the pod on his side of the door, or Mon would ignite the pod's boosters, resulting in the destruction of the pod and the demise of its four occupants. Upon hearing this, Maj launched an attack on Ephant Mon, who retaliated by fatally shooting him.