Cardbo with Yotsuba from the back of a volume cover.

Cardbo (ダンボー DanbōDanbo in Yen Press' translation) is a box robot that Ena and Miura made out of cardboard boxes for a school project in volume five, in the chapter "Yotsuba and Danbo" (Chapter 28). Miura uses Cardbo to fool Yotsuba into thinking that Cardbo is a real robot, by standing inside it and doing its talking. Yotsuba admires Cardbo a lot, as she thinks it is really cool to have a real talking robot friend. Cardbo runs on money, making it an environmentally friendly robot, and it can 
Real life Danbo

Real life cardboard robot from the 2011 Yotsuba&! art exhibit

fly up to superhuman speeds and shoot missiles. It also has a device with eyes that light up when you press a switch on the side of its head. It is from a far away country and had to fly to get to Japan where it is now living in Miura's bedroom. In the chapter "Yotsuba and Reunions" (Chapter 69), in volume 10, when Yotsuba went to Miura's house and found Cardbo lying lifeless beside her bed, Miura explained it away by saying that Cardbo was dead. That made Yotsuba tear up, so Ena and Miura "brought it back to life" through a ritual of resurrection, which Yotsuba was not allowed to look at. Ever since then Cardbo is alive, much to Yotsuba's satisfaction.


  • The name Cardbo is a combination of the words "Cardboard" and "Robot" (Miura made up the name).
  • On Azuma's website, Cardbo is referred to as either Danbo or "Danboard".
  • The Japanese name for Cardbo is Danbo, coming from the word Danboru, which means corrugated cardboard.
  • As of 2012 Cardbo is being used as a Mascot for the Thai PBS show "Little Citizen".
  • Cardbo has become well-known over the Internet as a hero of many photo shoots. One famous photo shoot is "365 Days of Danbo" by Arielle Nadel.[1] In fact, the image hosting and video hosting website Flickr returns over 30 000 photos tagged "Danboard".[2]
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