A heartfelt school drama about a new high school teacher who struggles to maintain challenging relationships with students, their parents, and colleagues in an unreasonable educational environment. While constantly looking for the right time to quit, she somehow strives for the sake of her students. She openly expresses her emotions by laughing heartily and venting her frustrations on a secret social media account, gradually developing trust and respect with her students.

Rio Sasaoka is a high school teacher from Generation Z who jumped into the education field with dreams and hopes. However, the harsh reality is beyond imagination, and she is living such a stressful daily life that she is considering quitting in her second year. She deals with students who interpret “freedom” too broadly and behave recklessly, parents and local residents with excessive expectations of the school, and senior teachers who push trouble-handling onto younger staffs. Rio vents her daily complaints on a secret SNS account, talks to her kind boyfriend, and maintains her balance with her inherent energy and brightness by occasionally saying, “Teachers are human too!”
However, her patience finally reaches its limit. She decides to resign, but simultaneously, a sudden vacancy for a homeroom teacher arises, and for some reason, the responsibility falls on Rio. She finds herself in charge of third-year students as a homeroom teacher for the first time, leading her teaching career into an even more challenging path! What is waiting for Rio then?


理不尽な教育環境の中で、生徒やその親、同僚たちとの難しい人間関係に奮闘する新任高校教師の姿を描いた心温まる学園ドラマ。 常に退職のタイミングをうかがいながらも、生徒たちのために何とか奮闘する。 主人公・笹岡りおは、泣きも笑いも感情に素直で、大笑いもすれば裏アカで愚痴も吐くような人間らしさ全開で、生徒たちとの間に徐々に信頼と尊敬の念を育んでいく。笹岡りお（生田絵梨花）は、夢と希望を胸に教育現場に飛び込んだZ世代の高校教師。しかし、その過酷さは想像を絶し、2年目にして退職を考えるほどストレスフルな毎日を送っている。「自由」を拡大解釈し奔放に振る舞う生徒たち、学校に過度な期待を寄せる保護者や近隣住民、トラブル処理を若手に押し付けてくる年配教師…。りおはそんな毎日の愚痴をSNSの裏アカウントに吐き出したり、優しい彼氏に聞いてもらったり、「先生だって人間だ！」と適度に発散しながら持ち前の元気と明るさでどうにかバランスを保っている。
しかし、その我慢もとうとう限界に到達。退職を決意するが、同じタイミングでクラス担任に急きょ欠員が発生し、穴埋めのお鉢が、なぜかりおに回ってきてしまう。初めての担任で3年生を任されることとなったりおの教師生活は、さらなる茨の道に突入！はたしてりおの運命は…。