Yomiko Readman is a charming book lover who dons spectacles and serves as a temporary educator at a Japanese secondary school. However, she possesses a covert identity- she is a secret agent for the British Library Special Operations Division, identified by the moniker "The Paper." This nickname alludes to her exceptional proficiency in shaping paper into an array of objects including weapons and tools, which she employs to battle against the IJIN Army, a group focused solely on its own gain. With her enigmatic partner, "Ms. Deep," Yomiko embarks on a voyage around the globe to uncover the truth behind the revival of historical figures and the scheme to dominate the world.