Taehyung is 25 years old, he is a Math teacher in a university and he is doing gymnastics in the living room while having headphones on and listening to music.

He is handsome and having a good-looking face and good style of clothes when suddenly his parents coming back home and going inside the house. He turns back and sees a 5 years old girl with them. His mother smiles and says.

"Taehyung, come here baby. See, we have brought a sister for you."