The man once called the world's strongest agent became an educator training the next generation upon his retirement. After raising disciples and passing sixty years of age, he dies in an operation orchestrated by those in power above him, but is reborn into another world while retaining his memories. Though surprised by different races and magic, he adapts with his characteristic quick thinking, turning everything into his own sustenance. As he masters special magic and continues rigorous training, he reaches the strongest level of power, but decides to pursue the path of educator once more—something he left unfinished in his previous life. This is the story of an educator who, based on the memories and experiences of his former life, travels the world together with his disciples.
| Word | Frequency | Difficulty |
|---|---|---|
| 罰あたり | 1 | 6.35 |
| 殺到 | 1 | 3.95 |
| うだつが上がらない | 1 | 6.57 |
| 何でしたら | 1 | 5.20 |
| 瀬戸際 | 1 | 4.89 |
| 熟考 | 1 | 4.92 |
| 偽情報 | 1 | 5.31 |
| 男性用 | 1 | 5.01 |
| 大理石 | 1 | 4.47 |
| 国王 | 1 | 3.02 |
| 仏頂面 | 1 | 4.36 |
| キャンプファイヤー | 1 | 5.33 |
| 栗 | 1 | 4.52 |
| 心を砕く | 1 | 5.57 |
| 蒔く | 1 | 4.80 |
| 電子ロック | 1 | 6.14 |
| 寂しげ | 1 | 4.45 |
| 自惚れる | 1 | 5.08 |
| 与る | 1 | 4.68 |
| 渡海 | 1 | 4.81 |
| 取り方 | 1 | 4.91 |
| 仕事場 | 1 | 4.56 |
| 在るがまま | 1 | 5.03 |
| 山程 | 1 | 5.22 |
| 昨日の今日 | 1 | 4.63 |
| 一言に尽きる | 1 | 4.82 |
| 公務 | 1 | 4.34 |
| 全く以て | 1 | 5.29 |
| 粉々にする | 1 | 5.63 |
| 少なめ | 1 | 4.71 |
| 往く | 1 | 3.36 |
| 半分冗談 | 1 | 5.37 |
| 火元 | 1 | 4.34 |
| 十日 | 1 | 4.05 |
| 子作り | 1 | 4.79 |
| 腰巾着 | 1 | 5.22 |
| 年配者 | 1 | 5.57 |
| 群体 | 1 | 4.97 |
| 授業参観 | 1 | 5.35 |
| 話頭 | 1 | 6.81 |
| 冷静になる | 1 | 4.82 |
| ブラフ | 1 | 4.86 |
| ミート | 1 | 5.46 |
| 研究開発 | 1 | 4.89 |
| 不足分 | 1 | 5.33 |
| お手並み拝見 | 1 | 5.13 |
| 気の置けない | 1 | 5.22 |
| 言い切れない | 1 | 4.32 |
| 火を放つ | 1 | 5.38 |
| 水色 | 1 | 4.03 |
| 恐喝 | 1 | 5.07 |
| 壺 | 1 | 3.98 |
| 席を立つ | 1 | 4.37 |
| 傍観 | 1 | 4.44 |
| おんぶ | 1 | 4.75 |
| 楽観視 | 1 | 4.78 |
| 事も無げに | 1 | 4.84 |
| 擦れる | 1 | 4.56 |
| 余命 | 1 | 5.00 |
| 錆 | 1 | 4.64 |
| 聞きよう | 1 | 5.34 |
| 間合い | 1 | 3.58 |
| 同士討 | 1 | 5.67 |
| 貴方方 | 1 | 4.99 |
| 膝裏 | 1 | 5.10 |
| 企み | 1 | 4.33 |
| 殺傷 | 1 | 4.58 |
| 盗難 | 1 | 4.85 |
| 時の流れ | 1 | 4.75 |
| 保冷 | 1 | 4.62 |
| 言付け | 1 | 5.05 |
| 後門 | 1 | 5.75 |
| ハイエナ | 1 | 5.03 |
| テーマ曲 | 1 | 6.09 |
| その旨 | 1 | 4.66 |
| 試運転 | 1 | 4.93 |
| 必要無い | 1 | 4.81 |
| 律 | 1 | 4.55 |
| 居心地良い | 1 | 6.21 |
| 胸を借りる | 1 | 5.70 |
| 暇がない | 1 | 4.97 |
| ご都合主義 | 1 | 4.94 |
| ほいほい | 1 | 4.97 |
| 窓際 | 1 | 4.34 |
| 増強 | 1 | 4.13 |
| 21日 | 1 | 5.14 |
| 怪物 | 1 | 3.50 |
| クローン技術 | 1 | 6.22 |
| 喪失感 | 1 | 4.68 |
| 眼中に無い | 1 | 5.63 |
| 祝辞 | 1 | 4.99 |
| 類を見ない | 1 | 4.87 |
| コードネーム | 1 | 5.15 |
| 天和 | 1 | 4.47 |
| 万国共通 | 1 | 5.69 |
| イノシシ | 1 | 4.36 |
| 風上 | 1 | 4.96 |
| 応化 | 1 | 4.48 |
| さす | 1 | 4.26 |
| 何でもあり | 1 | 4.71 |
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