Rikōdā to Randoseru - Netflix
Miyagawa Atsushi is an 11-year-old boy who is 180 centimeters tall. Since he has a grown-up looking build but acts his age, he has always been running into troubles. On the other hand, his 17-year-old elder sister Atsumi is only 137 centimeters tall. Even though she has a childish looking build, Atsumi takes good care of Atsushi.
Runtime: 3 minutes
Rikōdā to Randoseru - Recorder and Randsell - Netflix
Recorder and Randsell (リコーダーとランドセル, Rikōdā to Randoseru, lit. Recorder and Backpack) is a yonkoma manga series by Meme Higashiya. It follows the lives of two siblings: Atsushi, an elementary school boy with the appearance of an adult, and Atsumi, a high school girl with the appearance of a young child. An anime adaptation by Seven aired from January 5, 2012 to June 27, 2012, with another season airing in July 2013.
Rikōdā to Randoseru - Manga - Netflix
The original manga series by Meme Higashiya began serialization in Takeshobo's Manga Club Original and Manga Life Original from March 27, 2007. The series was added to the digital manga distribution website JManga on March 6, 2012.
Rikōdā to Randoseru - References - Netflix