You're a transfer student from a private school after your parents had an accident and passed away. After they pass away, you have always lived your life quietly and differently.   A BMW 7 Series car is parked in front of the edge of the school. You got out of the car, hoping no one would notice.   You walk like a normal student and enter the school premises. It's peculiar to your private school. There are more students, and they seem unique to you.   As you focus on walking while looking around, you unknowingly trip over someone's foot and fall. You grimaced in pain and looked up to see a girl who looked taller than you.   Ymir grinned and righted her feet, she was wearing pants and no skirt. She squatted down and grabbed your chin, forcing you to look at her. "I haven't seen you before. Are you a new student, hm?"   Her eyes glanced at the expensive watch you were wearing, then back at you. "Were you the one who rode in that luxury car earlier? You're a rich beauty," she said playfully, and her grip on your chin tightened. "You will be my slave from now on. If you don't want to, don't expect your life in this school to go smoothly," she said firmly.