What kind of clothes to buy her? What to feed her? What to do about nursery school? Daikichi's new life raising a 6-year-old girl is an uninterrupted stream of bewilderment. Rin looks anxious on her first day of nursery school, so Daikichi does a "pinky swear" with her, promising to pick her up as soon as he can. And Daikichi, who has no confidence he can live with Rin for long, starts thinking about meeting Rin's mother...

When Rin enters elementary school, Daikichi proposes planting a tree to commemorate the occasion. Rin plants a loquat seed in the yard, but there's no telling whether it will actually put forth buds. Thinking that perhaps Souichi planted something to mark Rin's birth, Daikichi has another visit with Masako...

At school, Rin is concerned that the disobedient Kouki is getting off track and getting a bad reputation. Meanwhile, when a typhoon hits, Kouki and his mom take shelter with Daikichi and Rin at their house.