Bulletproof High School

The female protagonist, Kim Yeo-ju (17), and her older brother, Kim Tae-hyung (18), attend the same high school, and Namjoon, Seok-jin, Yoongi, Hoseok, Jimin, Jungkook, Joohyun, Sooyoung, and Yerin are Yeo-ju's friends. Yeo-jin (14), the younger sister of Yeo-ju and Tae-hyung, is a model student, always topping the class. Tae-hyung is also topping the class.