Probably pine, collective sketchbook Draw whatever you want in this notepad. To celebrate Akatsuka Fujio's 80th anniversary, Osomatsu-san, an animated film, shows the growth of Osomatsu-kun to an adult . The story of Osomatsu-san aka Mr. Osomatsu is about the grown up sextuplet brothers. Fun animated characters with a little crazy characteristics have made it very popular.Which brother is your favorite?