In (titled "Mission Start"), the "paper" you are likely referring to is the brown paper bag Makima brings to her meeting with the yakuza boss. During this scene:
: Makima places a brown paper bag on the table. The boss initially laughs, thinking it is a bribe. Chainsaw_Man_episode_11_vf.mp4
: Inside the bag are actually the severed eyes of the boss's associates. This act of intimidation forces him to comply with her request for information regarding Samurai Sword's hideout. In (titled "Mission Start"), the "paper" you are