In a future Japan divided into several small nations after the collapse of civilization, this is a rise-to-power harem story depicting battles and adventures woven between the protagonist who has obtained the strongest level of power and several girls. The protagonist, who has time-slipped into a post-civilization-collapse future where special powers have become commonplace, takes up work as an "excavator," uncovering modern machine parts, products, metals and other items said to be relics from the mythological age based on memories and knowledge from that era. Furthermore, the protagonist encounters a beautiful girl in that land. This girl is the grown-up version of the neighbor's only daughter who was caught up in the time transfer before it happened—a young girl who adored him saying "I love you, big brother." That neighbor has become a Grand Duke ruling that land. ※Book version Volume 1 released on December 25, 2015. Book version Volume 2 released on February 25, 2016. Book version Volume 3 released on November 10, 2016.
| Word | Frequency | Difficulty |
|---|---|---|
| 霞む | 1 | 4.20 |
| かさ張る | 1 | 5.10 |
| 心持ち | 1 | 4.44 |
| ウヨウヨ | 1 | 5.60 |
| 倚子 | 1 | 4.45 |
| 活発 | 1 | 4.19 |
| 連日 | 1 | 4.25 |
| 肝 | 1 | 3.97 |
| ここだけの話 | 1 | 4.70 |
| 好き好んで | 1 | 4.60 |
| 悪巧み | 1 | 4.70 |
| 支持 | 1 | 3.96 |
| 呑む | 1 | 3.66 |
| ゴミ箱 | 1 | 4.65 |
| 惨劇 | 1 | 4.48 |
| 分類 | 1 | 3.93 |
| イケメン | 1 | 3.59 |
| 続 | 1 | 4.72 |
| 坐り | 1 | 5.20 |
| 変換 | 1 | 3.81 |
| ダラダラ | 1 | 4.55 |
| 守りきる | 1 | 5.25 |
| 割り当てる | 1 | 5.33 |
| 突きいれる | 1 | 6.55 |
| ごちゃごちゃ | 1 | 4.51 |
| すやすや | 1 | 4.61 |
| 不注意 | 1 | 4.88 |
| 見返り | 1 | 4.29 |
| 画房 | 1 | 5.79 |
| 良いこと | 1 | 3.92 |
| シャンデリア | 1 | 4.57 |
| 良しなに | 1 | 5.05 |
| スタート | 1 | 3.98 |
| 精根 | 1 | 5.52 |
| 捕る | 1 | 4.56 |
| 爆発的 | 1 | 4.23 |
| 世間話 | 1 | 4.17 |
| 自重 | 1 | 3.97 |
| 栄える | 1 | 4.70 |
| 何々 | 1 | 4.30 |
| 泣き付く | 1 | 5.30 |
| いつまで経っても | 1 | 4.16 |
| 墓穴を掘る | 1 | 5.48 |
| どうにかこうにか | 1 | 4.95 |
| 中腹 | 1 | 4.54 |
| 心機一転 | 1 | 5.41 |
| 照れる | 1 | 3.93 |
| 単刀直入 | 1 | 4.39 |
| 映え | 1 | 4.84 |
| 日用雑貨 | 1 | 5.54 |
| 朝焼け | 1 | 4.80 |
| 解り | 1 | 4.64 |
| 罰 | 1 | 3.70 |
| 猛スピード | 1 | 4.74 |
| 講ずる | 1 | 6.31 |
| 疎かにする | 1 | 5.05 |
| 陰で | 1 | 4.43 |
| 給え | 1 | 4.07 |
| 待ちきれない | 1 | 4.97 |
| 高め | 1 | 3.79 |
| その調子 | 1 | 4.64 |
| 大ぶり | 1 | 4.86 |
| 年の瀬 | 1 | 5.42 |
| 上は | 1 | 4.00 |
| 明治 | 1 | 5.04 |
| 口外 | 1 | 4.62 |
| 涙ぐむ | 1 | 4.42 |
| 当番 | 1 | 4.40 |
| 適した | 1 | 4.24 |
| 回線 | 1 | 4.68 |
| 南半 | 1 | 6.99 |
| 台所用品 | 1 | 6.16 |
| 若輩 | 1 | 5.01 |
| 快打 | 1 | 5.51 |
| 伏せ | 1 | 3.66 |
| 見誤る | 1 | 5.19 |
| 背筋 | 1 | 3.62 |
| 惨状 | 1 | 4.12 |
| 工期 | 1 | 5.43 |
| 刺激臭 | 1 | 5.18 |
| 激烈 | 1 | 4.96 |
| 来月 | 1 | 4.45 |
| 積もる | 1 | 4.09 |
| 冴えない | 1 | 4.71 |
| 生もの | 1 | 5.32 |
| 熟練 | 1 | 3.88 |
| 謝礼 | 1 | 4.68 |
| あっ気 | 1 | 4.67 |
| 紙幣 | 1 | 4.73 |
| 顔から火が出る | 1 | 5.69 |
| 御御足 | 1 | 6.05 |
| 機材 | 1 | 4.37 |
| 気前のいい | 1 | 5.61 |
| 訪ねる | 1 | 3.68 |
| おかしな | 1 | 3.53 |
| しょげる | 1 | 4.92 |
| 追い払い | 1 | 5.17 |
| 亡き者 | 1 | 4.86 |
| 男勝り | 1 | 5.12 |
| 刻印 | 1 | 4.00 |
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