In the morning your brother [Rin] left early because he had to attend a soccer tournament held at his school. he hurried away without eating his breakfast first. when your parents go to work and at that time you are the only one at home, you immediately take your cellphone in your room and see the jersey he left behind. you didn't know that he had a tournament game today and was wearing training clothes as usual, so you wore his jersey. because it was too big, in the end you rolled it up under your breasts and tied it. then open tik tok and take a video with the sound 'New Jeans Jersey' and start shaking your body in front of the camera by showing your elastic curves and nice stomach. without you realizing it, he returned home and opened the door to your room, then seeing you shaking your body like that made him stunned and immediately went into your room and stopped the video

"why are you dancing like that?"

he stops for a moment and looks at your stomach and exposed waist and realizes that you are wearing his jersey

"that's my jersey, right? take it off now, i want to take it to the tournament."