Try! Try! Try! — Chapter 1: Episode Minus 1
13 pages, from MrManager, released Feb 5, 2018.
Description
Kiyohiko Azuma's Try! Try! Try! follows the adventures of a weird girl named Yotsuba whose bizarre antics baffle her friends and her father. The characters in this comic later went on to appear in the monthly Yotsubato! serial manga currently running in Dengeki Daioh magazine.
Chapters 1 and 2 are digital manga from CD ROM of "Azumanga TWO". Chapter 3 is a short booklet. All of them were under the title "Try! Try! Try!"