Around that time, other worldly beings called ‘Z/X’ from yet another world put each world’s prestige on the line and a fierce battle unfolded. Unfortunately, humanity would become involved in this battle as well.

...Time moves on and the season is now spring.

The long-running battle between Z/X and mankind has finally settled down after a ceasefire treaty between mankind and the five worlds, and the existence of Z/X is now commonplace.

Azumi Kagamihara had fallen ill in her childhood, but her life was saved thanks to the technology from the blue world. After waking up from a long sleep, she goes to a certain school with her Rigel, a Z/X from the blue world who becomes her partner.

Although they don’t know the reason for being invited to the school, they meet four girls who were also invited to the school and learn that it’s a school that gathers all the girls in Japan who have partnered with Z/X to create ‘the elite from the strongest class’.

But why have they gathered all of these girls!? Can Azumi and Rigel become the strongest partners!?

‘Azumi Kagamihara, answer me. Do you want to live?’

The battle between all the girls beings now…!

Azumi Kagamihara

Voice Actor: Yui Ogura

Rigel

Voice Actor: Aya Uchida

Ena Soranokawa

Voice Actor: Inori Minase

Shuri Kijino

Voice Actor: Aina Suzuki

Matoi Shinonome

Voice Actor: Maria Naganawa

Yuni Tsukigata

Voice Actor: Miyu Tomiya

Nephrite

Voice Actor: Yuusuke Shirai

Muramasa

Voice Actor: Megumi Yamaguchi