Wonder Egg Priority / ワンダーエッグ・プライオリティ / 奇蛋物語
The series follows Ai Ohto, a junior high school student who is temporarily not attending school following the suicide of her close friend Koito Nagase.
During a late-night walk, Ai visits a deserted arcade, where a mysterious voice guides her to a gachapon machine that dispenses a “Wonder Egg”.
That night, Ai is drawn into a dream world where the Wonder Egg cracks open to reveal a girl, whom Ai must protect from a horde of monsters called “Seeno Evils”.
When the voice tells Ai that saving enough people in this world may bring Koito back, she resolves to continue buying Wonder Eggs and protecting their inhabitants. Along the way,
Ai meets three other girls in the same situation as her: Neiru Aonuma, Rika Kawai and Momoe Sawaki.