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 |
|---|---|---|
| 構 | 1 | 4.93 |
| 受け付ける | 1 | 4.38 |
| 暮らす | 1 | 3.59 |
| 竈 | 1 | 4.55 |
| 官爵 | 1 | 5.85 |
| ものの見事に | 1 | 5.05 |
| 剛毅 | 1 | 5.05 |
| 長ける | 1 | 3.91 |
| やり難い | 1 | 4.78 |
| 気力 | 1 | 3.86 |
| お体 | 1 | 4.76 |
| 金屏風 | 1 | 6.49 |
| 遡る | 1 | 4.13 |
| 上半身裸 | 1 | 4.77 |
| 浴びせかける | 1 | 4.79 |
| こと足りる | 1 | 5.92 |
| 無けりゃ | 1 | 4.56 |
| 肩を落とす | 1 | 4.28 |
| 謝礼 | 1 | 4.68 |
| 理性的 | 1 | 4.56 |
| 御意 | 1 | 4.25 |
| 立て替え | 1 | 5.31 |
| 害獣 | 1 | 4.66 |
| 焼酎 | 1 | 4.90 |
| ただならぬ | 1 | 4.66 |
| 言うて | 1 | 4.57 |
| 伝い | 1 | 4.51 |
| 眠気 | 1 | 4.06 |
| 一心 | 1 | 4.63 |
| エキサイト | 1 | 5.46 |
| 引きあげる | 1 | 5.45 |
| 無策 | 1 | 4.87 |
| 頭首 | 1 | 5.30 |
| 甚だしい | 1 | 4.51 |
| 一目散 | 1 | 5.95 |
| おこし | 1 | 4.92 |
| 早足 | 1 | 4.34 |
| 風邪をひく | 1 | 5.42 |
| 気功 | 1 | 4.52 |
| 語らう | 1 | 4.29 |
| 二の腕 | 1 | 4.42 |
| 育てる | 1 | 3.68 |
| 推定 | 1 | 4.42 |
| 満場一致 | 1 | 4.84 |
| し所 | 1 | 5.71 |
| マナー | 1 | 4.09 |
| 年より | 1 | 5.32 |
| 一桁 | 1 | 4.82 |
| 突っ走る | 1 | 4.52 |
| 顔向け | 1 | 4.79 |
| 達成感 | 1 | 4.49 |
| 唱歌 | 1 | 4.26 |
| カットソー | 1 | 5.94 |
| 厚め | 1 | 4.87 |
| 息巻く | 1 | 4.64 |
| 持ち越す | 1 | 5.25 |
| 抜かり | 1 | 4.67 |
| ニュアンス | 1 | 4.46 |
| 諭す | 1 | 4.07 |
| 山なり | 1 | 5.25 |
| 経費 | 1 | 4.45 |
| 仰せつかる | 1 | 4.79 |
| 落胆 | 1 | 4.10 |
| 根競べ | 1 | 5.71 |
| 長距離 | 1 | 4.23 |
| 単独行動 | 1 | 4.59 |
| 分権 | 1 | 5.86 |
| 打ち明ける | 1 | 4.12 |
| 自分から | 1 | 3.64 |
| 芋掘り | 1 | 5.99 |
| 自在に | 1 | 4.14 |
| 否々 | 1 | 3.79 |
| 氏名 | 1 | 4.80 |
| 富 | 1 | 3.79 |
| ガマン | 1 | 5.22 |
| 冠辞 | 1 | 4.73 |
| ニコッと | 1 | 4.79 |
| 危険度 | 1 | 4.20 |
| 翌 | 1 | 4.90 |
| 温情 | 1 | 4.58 |
| 鎌首をもたげる | 1 | 5.55 |
| アパート | 1 | 4.28 |
| 坐ら | 1 | 4.54 |
| 賞金 | 1 | 4.36 |
| 花火 | 1 | 4.08 |
| 爆破 | 1 | 4.28 |
| ニ | 1 | 4.21 |
| 頻繁 | 1 | 3.88 |
| 陸 | 1 | 3.77 |
| ダイヤモンド | 1 | 4.53 |
| 燃費 | 1 | 4.61 |
| 疑問点 | 1 | 4.99 |
| 遠方 | 1 | 4.06 |
| 乗り越える | 1 | 3.64 |
| 心掛け | 1 | 4.71 |
| 哺 | 1 | 3.45 |
| 武将 | 1 | 4.25 |
| ご無沙汰 | 1 | 4.40 |
| 本職 | 1 | 4.30 |
| 心持ち | 1 | 4.44 |
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