Papa No Iukoto O Kikinasai! - Usagi No Mark

The younger of three sisters, Hina Takanashi, is an energetic and good-natured 3 year old. The three sisters lost their parents in a plane accident. They now live with their 19-year old uncle, who is struggling to keep the family united and happy... and little Hina brings her happy mood to brighten the darker days. This spin-off story is parallel to the main series.