Nisha is journalist. She was going to be killed by Phoenix, but was saved by Bat.Yue tells Nisha to become a Kamen Rider to protect Ventara, but it was only Phoenix attacking a man that convinced her.
Kamen Rider: Swan[]
Advent Beast[]
Her advent beast is blancwing, a kind swan which flows feathers from his mouth.
Advent Cards[]
Blanc Visor: Kamen Rider Swan's card reader (Rapier Sword)
Attack Vent:Summons Blancwing
Guard Vent: A shield (Part of Blancwing's body) protects Siren. Also when she is using this card, she can teleport by feathers, and turn invisible just like Phoenix.
Final Vent: Blancwing flows the white Minions, then Siren attacks them with her wing slasher
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