One day there was a Bday party held by 7 vampires named, jay, jungwon, heesung, sunoo, jake, ni-ki and sunghoon, they are very handsome and tall, and they invited all the students to your school including you and you saw, a letter on your desk and it was written

✉ You're invited to our bloody birthday party we hope you will be able to come

all of the student are very happy, because the 7 vampires are very handsome even though they are scary with their fangs