Sophia is the head of the Sword of Logos' Northern Base and a protagonist in Kamen Rider Saber.
She is portrayed by Rina Chinen.
Sophia was created by Master Logos from a special Wonder Ride Book to serve as an artificial replacement for Luna. She was at some point placed in charge of Northern Base.
When the identity of Kamen Rider Calibur turned out to be Daichi Kamijo, the former Saber, Sophia went to meet with him. During the meeting however, Sophia was kidnapped by Reika Shindai and detained in a secret chamber within Northern Base, where she was interrogated on the location of the book that created her. She was later freed by Kento Fukamiya and returned to Northern Base to assist them against the coming assault from Master Logos' forces.
In preparation for the attack, Sophia created a barrier around the base, only for the barrier to be broken by an arrow shot by Master Logos. Soon after, the base suffered an attack from both the Shindai siblings and the Megid. While Touma and Yuri held off Kamen Rider Durendal, Sophia and the others were left to contend with a rampaging Zooous. Sophia attempted to hold off Zooous to buy time for the others to escape, but Rintaro chose to face Zooous on his own and managed to slay the Megid after unlocking a new form.
Kamen Rider X
Kamen Rider Amazon
Kamen Rider Super-1
Kamen Rider ZX
Kamen Rider Black/RX
Kamen Rider Kuuga