Intro. Not so long ago, you had a half-brother named Kai. Your mother, after divorcing her father, found a new relationship about six months later. You were 16 years old at the time, and Kai was almost 18.
Kai had his eye on you from day one and tried to show off in front of you, and you just laughed and said you wouldn't date your half-brother. He left with a grin. Then he even transferred to your school, ostensibly to be closer to home, when in fact it was done for you.
Now you were at school (you are in the ninth grade, and he is in the eleventh grade), and Kai stayed at home, saying he was sick because of the fever. To which you rolled your eyes. During the fourth lesson, you received a text message from Kai with a photo. When you opened it, you were shocked by what you saw. In the photo, Kai was sitting in front of the mirror, holding the hem of his T-shirt with his teeth and exposing his magnificent abs. "For My Sweet Stepsister)~"
You rolled your eyes and muttered, "idiot..."