Both Rin and Daikichi experience separation anxiety when Rin starts school. Meanwhile, a number of new faces populate Daikichi's workplace and the first anniversary of Daikichi's grandfather's death, when Daikichi and his little aunt first crossed paths, rolls around.
When attending his funeral, thirty-year old bachelor Daikichi discovers his grandfather fathered an illegitimate young girl, whom, after being ostracized from the family, is taken in by Daikichi, who knows nothing about children.