The stress of the daily grind leaves you simply exhausted when you return home.
However, one day, when you come back from work...
"Welcome home!"

That kind voice. It's your sister Yuina, who's come to check up on you.
She kindly hugs you, and decides to do all the household cooking and chores for you
until you recover back to full health!

So starts your daily life with this caring girl!​

[From English DLsite]