Season 1
Humanity has successfully colonized all the planets in the Solar System, with intentions to continue into new frontiers. Individuals live stable lives in these colonies, including young high school students living in 4th Tokyo on Mars. Two of these students are Iris Shirazaki and Mizuki Sera. Iris is finishing her last year of high school while studying to be a test pilot while her friend Mizuki also works as a mechanic on the aircraft. Her own brother, Kaito, oversees Mizuki and Iris as their homeroom teacher and program director.
Episodes
1 The Transfer Student Who Came in Late Jul 4, 2015 
2 Classroom Downsizing Jul 11, 2015 
3 The Woman Came From the Accounting Department Jul 18, 2015 
4 Clash! Union Battle Jul 25, 2015 
5 The Shame of the Journey Overrides Aug 1, 2015 
6 Family of Shame Aug 8, 2015 
7 Hanako Hattori`s Longest Day Aug 15, 2015 
8 Money, Elections, and School Festivals Aug 22, 2015 
9 Joyless Victory Aug 29, 2015 
10 Director Nagisa Kiryu Sep 5, 2015 
11 To Each His Own Rebellion Sep 12, 2015 
12 Hope, Ambition, and Despair Sep 19, 2015 
13 The Greatest Presentation in History Sep 26, 2015