17-Sai no Papa to Mama!?

From Renta!: 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!! **Official English:**.