Logicomanga is a manga written and illustrated by Masayuki Yamamoto, published by Kodansha from 2013 to 2015. Its a spinoff of the Ghost in the Shell: Arise anime.
The manga is set in "Arise Village," the space spontaneously created in the lingering memories of the Rojikoma's servers.
In this spinoff story, "Motoko" is a super-genius hacker who got lost in this space. Rojiko is a clumsy, eyeglasses-wearing girl, while Komako is an older, powerful girl with a "nice body." When Motoko finds herself in a pinch, Rojiko and Komako combine and transform into a Rojikoma.