Inside Jokes & hard to catch tidbits
These are a few odd things that I caught, that you may not normally catch while watching the show. I'm not saying this is a complete list, but just a few things I personally caught. These may contain spoilers.
Episode #23:
When Sana needs help from Akito she decides to use the Buruccha to send him a coded message. Akito on the reciving end didn't know what to make of it so he whips out a book to help him decode the message. The title of the book flies by pretty quick, but it reads "Buruccha Code Even a Boss Monkey could Understand, by Sana Kurata". Note that Akito never made out the code.
Episode #19:
It's meantioned that Sana was named after the day she was born SAngatsu NAnoka (the 7th of March). Sana is slightly distressed since she may have been born on the 6th of March which would be SAngatsu MUika, making her name Samu. Akito thinks this is funny since "Samu" is how you pronounce the English name "Sam".
When Sana decides that she want's to meet her little sister, she decides to meet her in an amusement park. And what amusement park to they go to? None other than "Ribbon Land". Ribbon is the name of a popular girls magazine which is a collection of comics targeted at younger girls. Kadomo no Omocha was one of the featured series in Ribbon.