Kumagawa Incident Arc Duration: Chapters 56 - 92

Their success is short-lived however, as the Chairman immediately falls back on a new method for the Flask Plan centered around Misogi Kumagawa, the one person even Medaka could not save. After a series of difficult battles in which Medaka's own Abnormality is finally identified, the Student Council is able to put an end to the Flask Plan. Medaka resolves to oppose the Flask Plan, and she and the other members of the Student Council descend into the academy's underground facilities to challenge the Abnormals participating in the plan the fearsome Thirteen Party. However, once such a method is found, the students of Hakoniwa Academy will be forced to endure the vicious trial experiments, which will result in the death of most of the students. In fact, these abnormal children are intentionally being brought together as the academy's Class 13 in order to study them and attempt to recreate their abilities the 'Flask Plan'. Formally called Abnormals, Medaka quickly discovers that she is not the only Abnormal in the academy, let alone the world.

Hakama Shiranui, Hakoniwa Academy's chairman, reveals to the Student Council a government conspiracy to study and attempt to artificially recreate super-humans on the same level as Medaka. Thirteen Party Arc Duration: Chapters 22 - 55, Episodes 13 - 23 It is not long before the Student Council's unorthodox methods begin to garner the wrong kind of attention: that of the Public Morals Committee, and their leader, Myouri Unzen considered a superhuman on the same level as Medaka. Shortly, they are joined by Kouki Akune, formerly of the Judo Club, who becomes the Student Council Secretary and Zenkichi's rival for Medaka's affections, and later Mogana Kikaijima, a member of the Swimming Club who becomes the Student Council Treasurer. Together, the pair answers numerous requests, from finding lost dogs to cleaning up club buildings and even fixing personalities.

She promptly strong-arms her childhood friend Zenkichi into helping her as the Student Council's General Affairs Manager. The series begins with the announcement of Medaka's election as Student Council President. Student Council Executive Arc Duration: Chapters 1 - 21, Episodes 1 - 12 Please note that the final story arc has not yet been an given official title, and the label Epilogue Arc is therefore non-canon.

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