My Bad Co-Author Ruins the Story

An unknown girl was accepted into the academy of her dreams.
Except, the academy seemed quite strange. And, why does everyone seem like they understand what's going on?

What are 'Gifts'?
What's up with these courses?
Why does everyone know each other?

Did I miss something in the school's website and forums?

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"Hey, let's write a story."

"Sure, but how?"

"Alternate between writing a chapter?"

"Sounds good!"

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Eve: As the title suggests, my bad co-author ruins the story
ile: I am still writing at a kindergarten level
Eve: Anyway, ile wrote the odd chapters, and I wrote the even chapters.

A Couple of Other Things to Note:

We did not plan the plot, at all.
We did not discuss how the story would play out.
We did not tell each other our plans.

This is why the story is called, "My Bad Co-Author Ruins the Story"