On the surface, Koudo Ikusei Senior High School is a utopia. The students enjoy an unparalleled amount of freedom, and it is ranked highly in Japan. However, the reality is less than ideal. Four classes, A through D, are ranked in order of merit, and only the top classes receive favorable treatment.

Kiyotaka Ayanokouji is a student of Class D, where the school dumps its worst. There he meets the unsociable Suzune Horikita, who believes she was placed in Class D by mistake and desires to climb all the way to Class A, and the seemingly amicable class idol Kikyou Kushida, whose aim is to make as many friends as possible.

While class membership is permanent, class rankings are not; students in lower ranked classes can rise in rankings if they score better than those in the top ones. Additionally, in Class D, there are no bars on what methods can be used to get ahead. In this cutthroat school, can they prevail against the odds and reach the top?
12 Episodes
  • What is evil? Whatever springs from weakness.
    What is evil? Whatever springs from weakness.Episode 1
  • It takes a great talent and skill to conceal one's talent and skill.
    It takes a great talent and skill to conceal one's talent and skill.Episode 2
  • Man is an animal that makes bargains: no other animal does this - no dog exchanges bones with another.
    Man is an animal that makes bargains: no other animal does this - no dog exchanges bones with another.Episode 3
  • We should not be upset that others hide the truth from us, when we hide it so often from ourselves.
    We should not be upset that others hide the truth from us, when we hide it so often from ourselves.Episode 4
  • Hell is other people.
    Hell is other people.Episode 5
  • There are two kinds of lies; one concerns an accomplished fact, the other concerns a future duty.
    There are two kinds of lies; one concerns an accomplished fact, the other concerns a future duty.Episode 6
  • Nothing is as dangerous as an ignorant friend; a wise enemy is to be preferred.
    Nothing is as dangerous as an ignorant friend; a wise enemy is to be preferred.Episode 7
  • Abandon all hope, ye who enter here.
    Abandon all hope, ye who enter here.Episode 8
  • Man is condemned to be free.
    Man is condemned to be free.Episode 9
  • Every man has in himself the most dangerous traitor of all.
    Every man has in himself the most dangerous traitor of all.Episode 10
  • What people commonly call fate is mostly their own stupidity.
    What people commonly call fate is mostly their own stupidity.Episode 11
  • Genius lives only one story above madness.
    Genius lives only one story above madness.Episode 12
Cast of Season 1
  • Shoya ChibaKiyotaka Ayanokoji (voice)
  • Akari KitoSuzune Horikita (voice)
  • Ayana TaketatsuKei Karuizawa (voice)
  • Yurika KuboKikyo Kushida (voice)
  • Mao IchimichiAiri Sakura (voice)
  • Ryota OsakaYosuke Hirata (voice)
  • Eiji TakeuchiKen Sudo (voice)
  • Mutsuki IwanakaHaruki Yamauchi (voice)
  • Daiki AbeKanji Ike (voice)
  • Toshiki IwasawaRokusuke Koenji (voice)
  • Masaaki MizunakaKakeru Ryuen (voice)
  • Mikako KomatsuMio Ibuki (voice)
  • Nao ToyamaHonami Ichinose (voice)
  • Rina SatoSae Chabashira (voice)

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