Who is Hepaitis (a.k.a. Writer) from Without Feathers and what is their importance?

Hepatitis is desperate to win the Athenian Drama Festival, but he can't think of a satisfying way to end his play. His ambitions are at odds with his principles. While Hepatitis wants to entertain the audience and win the contest, he also wants to preserve the sanctity of his characters by not forcing them to behave in a manner that is contrary to their nature. Unfortunately, he can't think of a plausible ending that will satisfy both requirements.