Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Overview & Story

The crazy comedy anime Null & Peta has been reborn as a thumb-threatening action game!
Null supports her sister from the sidelines while Peta equips an absurd arsenal of armaments to fix the bugs infesting cyberspace!

Featuring sisterly cooperation, gorgeous event CGs—and plenty of secrets to explore!?
The anime's writer Hato returns to tell another original story, and character designer Eku Takeshima has packed the game with new, exclusive art!

Debug the world!
Help Null and Peta defeat their true enemy, the Queen Bug!

Characters

Genius schoolgirl inventor and cyber-navigator.



Null's big sister! She loves her little sister.



A robot big sister created by Null. She doesn't seem to mind running into enemy bugs...!?