Papa no Iukoto o Kikinasai! - Usagi no Markパパの言うことを聞きなさい! うさぎのマーク ; Papa no Iu Koto o Kikinasai! - Mark of the Rabbit ; Papa no Iu Koto wo Kikinasai! - Mark of the Rabbit ; Papa no Iu Koto wo 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.