Summary for episode 10 from TV Asahi (the Seiya picture is from footage episode 1, don’t get too excited… for some reason Toei is actually trying to prevent spoilers this time around, almost the entire preview has stock footage that will definitely not be in the episode)
Episode 10: Desesperate Rescue! One More Gold Saint
Kouga’s group finally arrives to the Sanctuary, but they’re shocked at what they find there. The Sanctuary and the Twelve Houses of the Gold Saints have been destroyed! In their place, the construction of a mysterious tower has begun. The tower is called Babel and the blue-haired girl that helped Kouga is kept inside. In order to rescue her, Souma, Ryuho and Haruto decide to act as decoys so that Kouga and Yuna are able to infiltrate the tower.
The fact that, other than Kouga, Yuna is going to be the only one actually infiltrating the tower kinda increases the chances of the other Gold Saint being her teacher…