The sky is the limit in Houkago no Pleiades. With telescope in hand, Subaru is set to go to the observation room of her school in order to get a view of that night's meteor shower. What she least expects is that behind the observatory door was not the starry skies, but a lavish garden, complete with a resplendent fountain and a mysterious young boy with long red hair. But the garden soon disappeared, as if Subaru was only imagining things. All that remains of that brilliant sight is an odd, bouncing blob creature that leads her to another magical door, occupied by other girls in magical witch-like costumes. Revelations start hitting Subaru one after the other: one of the girls in the room is her childhood friend Aoi, the little blob is actually an alien of a species called the Pleiadians trying to return home, and Subaru has been selected by him to become the newest member of their group! Now Subaru's dreams of the stars have come true in the wildest way, as she and her friends attempt to gather pieces of the Pleiadian spacecraft engine to return the being to his home. But they're not the only ones after the engine parts, and they have no idea why!

Minato visits a recitation at an anime event with his friend. He is captivated by the voice actors' performances and decides to enroll in Suidoubashi Animation Academy. There, he meets Chikako, who used to live in the room he is moving into and who left a message in a USB drive. Minato, who aims to be a voice actor but is unable to put himself into the role, and Chikako, who lives with a past trauma, encourage one another and try to improve themselves. With the help of seniors such as Ryouta and Kei watching over them, they try to mature. As they stumble and worry, what lies ahead for them both?

Beiyi used a strategy to attack Baicheng, an important town in the northern border of Daqi Kingdom. Tang Yao, the guard of Baicheng, led his people to resist desperately, but they were outnumbered, and all sacrificed. Only the second daughter, Tang Ying, survived. What makes Tang Ying even more indignant is that his father sacrificed his life for the country, but in return he was charged with collaborating with the enemy. In order to take the place of her father, Tang Yingyi went to the capital, but found that things were not as simple as imagined. Is Yuan Lang, the second prince of the Daqi Kingdom who has been hostage for decades, related to Beiyi? Why is the woman pretending to be herself so strangely similar? What happened to the otherworldly person that Yao Niang from the movie department was talking about? There are also those strange and familiar memories that appeared nervously... There are too many mysteries waiting for Tang Ying to answer.

The first half of the second season of Cardfight!! Vanguard G series.