One day, her student Kogure Kazuhiko (Sueoka Takuto) falls from the rooftop. Kazuhiko was on the rooftop with some other male students who say that he was jumping to the neighbouring school building but missed it and fell. Fortunately, although Kazuhiko ends up with a fracture leg and ribs, he is in a stable condition. However, in order to protect its public image, the school explains to Kazuhiko’s mother Hidemi (Horiuchi Keiko) that it was not bullying but an accident caused by a caper with friends. Kazuhiko has a fear of heights and would not have done something like that. Hidemi, who is skeptical of the school’s explanation, consults Mayuzumi Machiko (Aragaki Yui). Machiko is an enthusiastic lawyer with a sense of justice and readily agrees to undertake this case. However, she is not confident that she is going to win this alone and seeks the help of Komikado Kensuke (Sakai Masato). Komikado cuts her off by telling her that he hates kids and schools, but he accepts the case in the end. On the other hand, the school gets Miki Choichiro (Namase Katsuhisa) to represent it. Miki, who has had bitter experiences with Komikado in previous trials, burns with exceptional hostility. He decides to entrust this case to the lawyer Teshigawara Isao (Kitaoji Kinya). Komikado has never lost in a trial. Standing in court in high spirits, he sees the presiding judge Beppu Toshiko (Hirosue Ryoko) and is astounded. Komikado who has a great love for females had once tried to pick Toshiko up at a ski resort while on a vacation but was unceremoniously dumped. Toshiko’s impression of Komikado puts him at a great disadvantage before the case is fought in court
藤井みなみが担任(榮倉奈々)を務める公立うさぎがおか中学校の2年C組の小暮和彦(末岡拓人)が屋上から転落。屋上には和彦の他にも男子生徒がおり、彼らは和彦が隣の校舎に飛び移れると言い出したが、届かず落ちてしまったと話している。
幸い、命に別条はなかったものの、学校側は、いじめではなく友達同士の悪ふざけによる事故だと和彦の母・秀美(堀内敬子)に説明する。和彦が高所恐怖症なことから学校側の説明に不信感を抱いた秀美は、黛真知子(新垣結衣)に相談をする。
正義感にあふれる黛は、自分が請け負うべき依頼だと快諾するものの、1人で確実に勝てるかどうか不安がよぎり、古美門研介(堺雅人)に相談をする。古美門は、黛の相談を「ガキと学校が大嫌いだ」と瞬殺するものの、結局依頼を引き受けることに。
一方、学校側は、古美門に対して敵対心を燃やす三木長一郎(生瀬勝久)に弁護を依頼。三木は、この依頼を弁護士の勅使河原勲(北大路欣也)に一任することに決める。これまで裁判で負けたことのない古美門は、意気揚々と法廷に立つが、裁判長の別府敏子(広末涼子)を見て、がく然とする。
女性をこよなく愛する古美門は、以前バカンスで訪れたスキーリゾートで見かけた別府をナンパしたが、こっぴどくフラれていたのだ。裁判長の心証面において、裁判を争う前から大きな不利を抱える古美門は、裁判で勝つことができるのか!?
우사기가오카 중학교에 재학 중인 카즈히코는 옥상에서 추락해 의식불명 상태에 빠진다. 학교 측과 현장에 있던 친구들은 장난치다 그런 것이라 주장하지만, 카즈히코의 어머니는 따돌림이 있었다는 확신에 코미카도법률사무소에 의뢰하는데…
勝率100%的王牌大律師古美門(堺雅人飾),性情古怪、滿嘴歪理,為求勝利無所不用其極。他的搭擋黛真知子(新垣結衣飾),則是熱血單純、正義感十足的小律師。
古美門出庭向來招招必中,沒想到美女法官廣末涼子,偏偏不吃這一套!他決定改出別招,想不到下場更慘?!落盡下風的王牌大律師,能嬴得這次裁判嗎?
這次兩人遇上的案件,發生在國中校園。女導師(榮倉奈奈飾)班上的學生,從屋頂跌落受傷,學校對外聲稱是學生之間嬉戲,並非霸凌事件。受害學生的母親向真知子求救,學校方面則委託三木(生瀨勝久飾)的法律事務所,由勅使河原勳(北大路欣也飾)擔任辯護。
當古美門得意洋洋、信心十足的站上法庭,這才發現負責此案的裁判長(廣末涼子飾),竟是自己之前搭訕失敗、不歡而散的神秘美女…