Twins Light and Dark

双子明暗

Air date: July 15, 2012

Important things that happened

Hayami gives Yuuki astronaut papers from Nasa. He asks her to deliver one to Kengo.
As she's leaving she calls out to the voice from space, which Gamou overhears. (He wrote a book that had a similar name.) Gamou has Libra use his Laplace Eye on Yuuki again, which causes him to see the Gemini constellation within her.
Gentarou sees someone who looks like Yuuki tear up Kengo's astronaut papers, as well as throws Hayabusa-kun on the ground. In response to Gentarou's accusation, Yuuki tells him to forget about "that ticket".
After someone who looks like Yuuki throws Miu off a high area, she uses a Switch to transform into Gemini Zodiarts.
We learn that when Libra forced Yuuki to press the Switch, she split into a light and dark side (because Gemini is special). Eventually, the dominant personality will remain while the other disappears.
After being saved by Sagittarius Zodiarts, Gemini Zodiarts develops her Supernova, which allows her to copy herself.

Yuuki's father - Kamio Yuu

Yuuki's mother - Takahashi Mari

Gamou's book is called "A Call from a Faraway Galaxy", which you see Yuuki reading in an early episode. The picture of him on the back is one of the first instances that we see of Gamou in the series.
Yuuki's house is decorated rather eclectically. There's a tanuki statue, a carousal horse, tribal artifacts, and masks. The English spelling on their family plate says Joujima with a u.
Even Yuuki's parents don't believe that she heard a voice from space.
When the school confronts Yuuki about her crimes, she claims that "Doppel-san" was behind them. She meant doppelganger, which isn't too far from the truth.
Continuity Error: When Gentarou, Ryuusei, and Kengo burst into Joujima's home, they hastily take off their shoes before going upstairs. When they jump out of Yuuki's window, Gentarou and Ryuusei have their shoes back on.

Click to expand