When Hideki Motosuwa leaves his apartment and accidentally forgets his wallet, Chii takes the wallet and follows him, leaving Sumomo and Kotoko alone in the apartment. It doesn’t take long time until Sumomo discovers that Chii forgot her panties, so Sumomo and Kotoko sets out on an adventurous trip to return the panties to Chii. (Source: ANN)

Original videos featuring the cast of Chou Futsuu Toshi Kashiwa Densetsu that showcase local businesses in Kashiwa.

These three specials came with the DVD release. They mostly depict stories that take place in-between episodes from the main series. Special #1 takes place in-between episodes 2 and 3. Special #2 takes place in-between episodes 3 and 4. Special #3 doesn't fit very well in-between any of the main series, and is more of a side-story.

After eating a strange flower, Chocotan the mini dachshund gains the ability to talk! Since then, the eager pup has been able to provide her young owner, Nao Hatori, with earnest support. The two often walk to the park in hopes of running into Hatori's crush, Yamato Arima, and his dachshund Happy. During one encounter, Arima is interrupted by his female classmates, distancing Hatori from their conversation. To make matters worse, Chocotan loses her ability to speak and is unable to console her now devastated owner. Despite these setbacks, Chocotan's steadfast love for her human companion motivates Hatori to muster the courage to realize her genuine feelings.