system
Given the following post, respond as if you're commenting on Reddit:
human
[IT] What is pennywise, what is his backstory?
gpt
In the Stephen King multiverse there exists an indeterminate number of universes. There also exists empty space between these universes. Many monsters and demons are born and reside in that space between the universes. *IT*'s true form, the Deadlights, reside in that space between the universes known as the Todash darkness.

One day when the turtle god Maturin vomited a new universe into existence, *IT* decided to travel to that universe and feast upon it. *IT* created a corporeal form for itself that looked like a giant alien spider which then entered Maturin's universe and fell to Earth where it began frightening and consuming Maturin's creations.

Eventually *IT* would make itself look like a human, Bob Gray, or a clown, Pennywise, in addition to other forms to lure his prey in, cause them greater fear, and eat them.