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 |
|---|---|---|
| 波紋 | 1 | 4.32 |
| ほっぺ | 1 | 4.45 |
| 連呼 | 1 | 4.59 |
| 見つけ出す | 1 | 4.21 |
| 幾らか | 1 | 3.77 |
| 満場一致 | 1 | 4.84 |
| 見出し | 1 | 4.36 |
| フィルム | 1 | 5.22 |
| ゾッコン | 1 | 5.91 |
| 情緒不安定 | 1 | 4.90 |
| 危なっかしい | 1 | 4.49 |
| 物おじ | 1 | 5.85 |
| 弱さ | 1 | 4.17 |
| 険しい顔つき | 1 | 5.46 |
| 藻屑 | 1 | 5.56 |
| 頭骸骨 | 1 | 6.94 |
| 稀薄 | 1 | 6.22 |
| 技量 | 1 | 3.71 |
| 手早い | 1 | 3.97 |
| 残りわずか | 1 | 5.30 |
| 泥だらけ | 1 | 4.72 |
| 自爆 | 1 | 4.12 |
| 人を見る目 | 1 | 4.77 |
| 盾 | 1 | 2.83 |
| 呆れかえる | 1 | 5.21 |
| 払いのける | 1 | 4.95 |
| 精巧 | 1 | 4.53 |
| 物音 | 1 | 4.09 |
| ショートボブ | 1 | 5.42 |
| 燃費 | 1 | 4.61 |
| 魅せる | 1 | 4.48 |
| 排気量 | 1 | 6.24 |
| 久しい | 1 | 4.27 |
| お話 | 1 | 3.21 |
| 一ミリ | 1 | 5.06 |
| 機能 | 1 | 3.28 |
| ひと仕事 | 1 | 5.38 |
| 人垣 | 1 | 4.47 |
| 泄れ | 1 | 4.92 |
| 邪 | 1 | 3.68 |
| はく奪 | 1 | 5.48 |
| 対処法 | 1 | 4.40 |
| 破摧 | 1 | 5.05 |
| 賢い | 1 | 3.83 |
| 大衆食堂 | 1 | 5.22 |
| 同年代 | 1 | 4.12 |
| 悪びれる | 1 | 4.37 |
| もろに | 1 | 4.74 |
| 内部環境 | 1 | 6.78 |
| 括り | 1 | 3.98 |
| 達者 | 1 | 4.57 |
| 一度ならず | 1 | 5.36 |
| 灯る | 1 | 4.09 |
| ポンポン | 1 | 4.20 |
| 背伸び | 1 | 4.30 |
| かっ飛ばす | 1 | 5.61 |
| 時報 | 1 | 5.74 |
| つき合う | 1 | 4.70 |
| ダンジョン | 1 | 2.91 |
| ヅラ | 1 | 5.16 |
| 来訪 | 1 | 4.06 |
| 溢れ出す | 1 | 4.59 |
| 奇跡的 | 1 | 4.45 |
| 架ける | 1 | 4.98 |
| 即答 | 1 | 3.92 |
| 解する | 1 | 5.11 |
| 存亡 | 1 | 4.85 |
| 断り | 1 | 4.01 |
| 土足で | 1 | 5.00 |
| タヌキ | 1 | 4.40 |
| 柵 | 1 | 3.75 |
| 戴く | 1 | 3.70 |
| 今更ながら | 1 | 4.17 |
| ほっといて | 1 | 4.77 |
| 模倣 | 1 | 4.31 |
| 度量 | 1 | 4.69 |
| 満腹感 | 1 | 5.25 |
| 応接間 | 1 | 4.41 |
| 謝り | 1 | 4.17 |
| 防壁 | 1 | 3.77 |
| 卒業生 | 1 | 4.49 |
| 色っぽい | 1 | 4.28 |
| 異性 | 1 | 4.02 |
| 何げなく | 1 | 5.41 |
| 見るから | 1 | 3.92 |
| 支持 | 1 | 3.96 |
| 埒が明かない | 1 | 4.71 |
| お新香 | 1 | 5.41 |
| 集結 | 1 | 4.16 |
| あながち | 1 | 4.33 |
| 生存 | 1 | 4.05 |
| 兼ね備える | 1 | 4.41 |
| 焼き | 1 | 3.55 |
| 事あるごとに | 1 | 4.57 |
| だったろう | 1 | 4.22 |
| 駆使 | 1 | 3.94 |
| 地割れ | 1 | 4.98 |
| 常連 | 1 | 4.34 |
| 走破 | 1 | 4.91 |
| ベトベト | 1 | 5.30 |
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