Wonder Egg Priority (ワンダーエッグ・プライオリティ)

Led by mysterious voices to an abandoned arcade, Ai Ohto receives a "Wonder Egg" from a gachapon machine. Ai is told by the voices that she will receive what she desires most when she breaks open the egg.

Ai meets Neiru Aonuma, a girl who also purchases the Wonder Eggs. Ai tries to become friends with her but to no avail. Later, Ai breaks a new egg containing a girl who suffered abuse from her gymnast coach.

While buying Eggs for herself and Neiru, Ai meets Rika, a former idol who is there for the same reason. Rika quickly pushes her way into Ai's life, but what lies beneath her cheerful and callous exterior?

With Rika out of action, Ai is on the run and struggling to protect two girls from the most devious killer she's faced yet. Meanwhile, a fourth child is also fighting to protect the girls in the Eggs.

Ai, Neiru, Rika, and Momoe become close friends fast through their shared connection to the Wonder Eggs. But one day while the girls spend the day together, Rika questions why they have to risk their lives for the girls of the Eggs.

The girls are attacked by a dangerous new type of enemy while trying to protect their Wonder Eggs. Acca and Ura-Acca may have a solution, but Ai is more concerned with the budding relationship between her mother and Mr. Sasaki.

Acca and Ura-Acca would like to sell you a Wonder Egg. While you make up your mind, they'll explain the Eggs and introduce four of their regular customers: Ai, Neiru, Rika, and Momoe.

The girls are surprised when Neiru invites them all to her house, and even more surprised to find out that she lives at her company. Is Neiru ready to be open about her situation, and how will the others take it if she is?

Rika, who has witnessed Acca and Ura-Acca with Neiru's secretary, asks Neiru about their relationship. A big secret is revealed. Meanwhile, Momoe sends them a text telling them that a boy confessed to her and has invited her to a date. Ai and the others are excited about the news, but Momoe seems unhappy for some reason. At the same time, the battles in the world of eggs are getting fiercer and fiercer.

The girls realize that there's more waiting for them at the end of missions than they bargained for. As doubts pile up and tensions rise, Ura-Acca decides to tell Ai his story.

Friendships are tested as Ai and Neiru realize how much "victory" has cost Rika and Momoe. Ai decides to fight again in spite of what she's learned, but the girl who emerges from her Egg this time may be more than she bargained for.