41 - If I Can't Pet One...
When Kaorin shows off pictures of her cats at school, Sakaki gets an idea.
42 - 11 Years Old
Chiyo announces that she will soon be turning eleven.
43 - Mr. Kitty Cat
With Chiyo's birthday coming up, Sakaki searches for the perfect gift.
44 - Premise
The girls gather at Chiyo's house for a birthday party.
45 - Why?
After the party, the girls go for a walk together.