Kogechibi  

, 初美

In the library, there lives an AI assistant named Kogechibi. She resembles a four-inch (102 mm) tall version of Eve with different colored eyes. The name "Koge" refers to the cloak that covers her body except for her eyes. When the main character wears this cloak, she is referred to as "O-chibi-chan," an honorific and endearment. Kogechibis vocabulary consists of unintelligible sounds similar to baby talk. In the anime, she has a fascination with fireworks and can speak a few words when they are related to explosives. She constructs miniature catapults and launch platforms and uses hollow fountain pens filled with gunpowder as bottle rockets. Although she plays a minor role in the plot, her comedic relief adds to the overall enjoyment of the anime. In the game, it is revealed that Kogechibi is a fragment of Eve, and when guardians overexert themselves, they "fragment" into separate pieces that take on a life of their own.