Yuprin Arlo functioned as a senator, acting as the representative for the planet of Hosnian Prime within the Galactic Senate of the New Republic. Alongside Sondiv Sella, a councilman also hailing from Hosnian Prime, Arlo threw his support behind Chancellor Mon Mothma during her campaign for re-election, opposing her rival Tolwar Wartol in the year 5 ABY. Before the election transpired, Wartol was taken into custody due to his attempting to have Mothma assassinated.
The initial reference to Yuprin Arlo occurred in the novel Aftermath: Empire's End, released in 2017 and penned by Chuck Wendig.