Although this series ended at 343 episodes, there is some other GuP 4-koma series by the same artist that I see in current issues of Megami Magazine. The title is something like "Ooarai Girls High School: After-school Correspondence Course". I don't know if there is any other place to read them besides the magazine.
A
What's that?
You guys want to start tankery?
Yeah!
I want to hurry up and do tankery with Momo-chan!
Momo-chan is the Comm-ander!
You must be strong huh~!!