|Hair color||Lavender with pink hue|
|Occupation||Student, Space Patrol Officer|
|Voice Actor(s)||Mayumi Shintani (Jp)|
Jamie Marchi (En)
|First Appearance||Episode 03|
Midori (ミドリ Midori), alias Save The World is a classmate of Luluco. After being caught as publisher of an illegal Blackhole App, she volunteers to join the Space Patrol in order to get out of any punishments for her crime, as well as to spend more time at the side of AΩ Nova.
- Midori is identifiable by the eye in her hair, which can be seen moving along with her regular two. She wears typical school attire when not fulfilling her new duty.
- Midori is a greedy and self-centered child, which is fitting as she is only in middle school. She doesn't put up with the harebrained methods in which the Space Patrol conducts itself, and has no problem in openly criticizing methods and morals of those around her. She has no true desire to bring about justice, she only really cares about spending time with AΩ Nova. Despite Luluco's affections toward Nova, she also has feelings for him and tries to spend time with him.
- "LITTLE SHIT!" - Towards Luluco (Episode 03)