Mr. Newt Scamander

Here is the story:

1. Swapped suitcases
   Newt Scamander, a magizoologist, arrives in New York in 1926. His suitcase gets swapped with Jacob Kowalski's, a No-Maj/Muggle baker. Jacob's suitcase only contains bread, while Newt's suitcase is filled with magical creatures.
   When the suitcases are swapped, several of Newt's creatures escape into New York. The task for Newt + Tina + Jacob is to catch them one by one before MACUSA—the American magical police—accuse Newt of causing chaos.

Encountering an Erumpent at the zoo
One of the escapees is an Erumpent. They track it to the New York zoo. This Erumpent is extremely fierce + its fluid can cause explosive pregnancies 💥 So it's very dangerous if it stays in the city.
Well, when they try to capture it, the Erumpent goes on a rampage and chases Newt and Jacob. Jacob is beyond panicked because he's a No-Maj and can't use magic. So they run for their lives inside the zoo while screaming.
Finally, Newt manages to calm the Erumpent using a liquid that puts it to "sleep," or rather mating mode, so it can be put back into the suitcase. However, they didn't realize that from the very beginning, there was a girl perched on a metal pole, standing there, watching everything from the start, wearing short pants, black shoes, and a red blouse, with long silver hair and pink eyes; her vibes were like "wow, an angel" but also similar to a demon, eerie. She was just watching. She didn't do anything.