

The story is set in the year 311 of the Orbital Calendar, when humanity has migrated to countless colony clusters in space. A space colony girl named Akiha Shishidou encounters a malevolent artificial intelligence named Leopard that has been installed on a colony. Akiha is joined by an Inter-Colony Police officer named Itsuki Kannagi, a taciturn young girl named Honoka Kawai, and a robot named Imoko "Imo-chan" Shishidou.

Akiha Shishidou
Main

MAKO
日本語

Itsuki Kannagi
Main

Aya Endou
日本語

Honoka Kawai
Main

Yui Makino
日本語

Leopard
Main

Jun Fukuyama
日本語

Imoko Shishidou
Main

Ai Nonaka
日本語

Kazane Shishidou
Supporting

Yukari Tamura
日本語

Takane Shishidou
Supporting

Yukana
日本語

Nami Shishidou
Supporting

Yuuka Nanri
日本語

Sakura Shishidou
Supporting

Momoko Saitou
日本語

Nina Stratoski
Supporting

Naomi Shindou
日本語

Emilio Surre
Supporting

Akira Ishida
日本語

Erika
Supporting

Sayuri Yahagi
日本語