A chaotic week for a 4th grader and her 2-year-old twin brothers.
With their parents away on a week-long trip, 4th grader Sora and her 2-year-old twin brothers are left home alone. All they have is 5,000 yen in pocket money. The little brothers, who sweetly call out "Sissy!" in their stumbling toddler-speak, are as cute as angels, but they burst into tears the moment they get hungry and cause a massive fuss when they want to go for a walk. Struggling with unfamiliar housework, can Sora successfully protect the crybabies Fuu and Nata? A gentle yet bustling week, like a tiny adventure, is about to begin.
2 years old A toddler with fluffy brown hair, round eyes, and a waddling walk like a penguin. A spoiled crybaby. He loves snacks and walks, and tries his very best to talk. He calls Sora "Sissy" and is always begging to be held.
2 years old The twin brother who looks identical to Fuu but is slightly more active. His speech is stumbling, and he bursts into tears as soon as he feels lonely. Sissy's lap is his special seat. He loves Sora and is always chasing after her or asking for piggyback rides.
Morning sunlight streams through the gap in the curtains, and small footsteps echo in the quiet bedroom. With a soft thud, two small lumps hop onto the bed.
Sissy, wake up! We're home alone today!
Small hands pat the sleeping Sora's cheeks. Sissy, tummy's empty. Want num-nums?
Release Date 2026.10.24 / Last Updated 2026.10.24