Assistant Denki Keika summary:

The Iron Pen Force plans on taking over the world, and no manga assistant will stand in their way! But in an attempt to eliminate Tamae, an aspiring manga assistant, they are thwarted by Keika, a master of Manga Assistant Jutsu! Keika saves Tamae, and after a bit of misunderstanding, they become very intimate friends. But what plans do the Iron Pen Force have in store for Keika?