A Herbivorous Dragon of 5,000 Years Gets Unfairly Villainized

A young girl offers herself to an old dragon inside his cave, asking him to devour her. However, the dragon in fact is a herbivore that has been living a recluded life inside his cave for more than 5000 years. While trying to clear up the misunderstandigs that the legends of the outside world have induced about him, he struggles to make the communication work with this little girl who at times almost doesn't even seem to speak his language.