A baby and a 17-year-old boy and girl living under the same roof. I haven't even had my first kiss yet...... but am I a mother and he a father to the baby!? ...I'm spending the summer at my sister's place in the city. I open the door in excitement and find a baby in a diaper! Then a naked boy rushes out...... chasing after the baby! ...According to Tokio, my sister's stepson, she left for a honeymoon with her husband. ...Does that mean I'll be living here with him and the baby all summer!? We look like...... a married couple with their child!!

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