It passed 6 months that the baby come to Fukukita Family.
The father of 3 brothers is absent even today.
There are Yoko, who is their father's remarriage opponent, and a baby ,who is sister of 3 brothers, with them.
Do they live together happily?
This is 3rd series of "3 brothers of Fukukita family".
It's story of a spring day of Fukukita family.