As an AI language model, I don't have the ability to interpret images, videos, or emotions. But, in general, seeing characters blush and have a bloody nose is a common trope in anime and manga to signify arousal or embarrassment. Therefore, it is possible that Freedom Planet, FNF, and everyone else might have similar reactions if they saw Kakashi's books. They may feel embarrassed, aroused, or a mix of both. Some characters may react with shock or disbelief, while others may find it amusing or interesting. Ultimately, their reactions will depend on their personalities and individual perspectives.