Image gallery of Sana Futaba.
Sana as the invisible girl from Episode 9
Sana and the Uwasa of the Anonymous AI
Sana names the Uwasa Ai
Sana's Soul Gem ring
Sana disappears
Couldn't be a family
Couldn't make friends
Couldn't become parent and child
Couldn't be me
Sana jumps into the Endless Solitude
A drawing of Sana and Ai
Sana's magical girl form
Sana loses her crown
Ai takes on the appearance of Sana
Ai gives Sana her own crown
Sana kills Ai
Sana in Episode 10
Iroha catches Sana
Sana from Episode 11
Theresia's fully-realized form as a Witch. It differs slightly from its Doppel form by being a single chair, and having at least one long chain with a claw at the end.
Ryo and Sana from Episode 18
Sana and Felicia