A coffee visit

Two young women sit across from each other in a cafe in Sydney. They seem to know each other well because they speak close to each other with their heads.

One woman is Mai, a young student with long blond hair and bright blue eyes, the other young student she talks to is Kate, she has long, slightly wavy, pitch-black hair and blue eyes like Mai.
"What do you think Mai, whether we can manage it?", Now the mood seemed to be depressed for both of them. "I don't know Kate, that's probably a size too big for us!", "So we don't cheat on the final exam, I prefer it too!", Kate agreed. "And what about the job?" Mai took a long break. "You know", "I don't feel like doing that, they can do their crap on their own." Kate's expression darkened when her friend started with this topic.
Some time ago a mysterious man approached the two women, he gave them a letter, and since then their lives began to go wild, although there was only one sentence in this letter.

(THE GATE IS OPEN!)

On the one hand, they had no idea what that was supposed to mean and on the other hand, the two of them were not completely at ease and when they met this man again one day, he said they had to go to Ireland and meet the magic council there to save the world , however, that is very suspicious for both of them.
Because they had never heard of a magic council and they did not believe in magic and if there should be such a thing as magic, why should two students save the world who have no idea about it!
But soon your mind should change!