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 |
|---|---|---|
| 断罪 | 1 | 4.08 |
| 一掃 | 1 | 4.24 |
| 壮観 | 1 | 4.62 |
| 血の気 | 1 | 4.13 |
| これ等 | 1 | 3.57 |
| 抜かり | 1 | 4.67 |
| 笑い出す | 1 | 4.66 |
| 証言 | 1 | 3.95 |
| 汁物 | 1 | 4.44 |
| 舞い込む | 1 | 4.60 |
| 文句のつけようがない | 1 | 5.60 |
| 手が早い | 1 | 5.39 |
| 頼りになる | 1 | 4.07 |
| 含ませる | 1 | 5.46 |
| かしこ | 1 | 5.14 |
| 悦に入る | 1 | 5.12 |
| まとめ | 1 | 4.00 |
| 先頭に立つ | 1 | 4.78 |
| 点頭く | 1 | 3.86 |
| 疎かにする | 1 | 5.05 |
| 何事も | 1 | 3.93 |
| コノヤロー | 1 | 5.52 |
| 描写 | 1 | 4.16 |
| もがき | 1 | 4.75 |
| う歯 | 1 | 4.60 |
| 手を煩わせる | 1 | 4.96 |
| 毛むくじゃら | 1 | 4.90 |
| 殴りかかる | 1 | 4.95 |
| 竹の皮 | 1 | 6.19 |
| 性能 | 1 | 3.48 |
| 焼酎 | 1 | 4.90 |
| 程なく | 1 | 4.49 |
| 金網 | 1 | 5.09 |
| 座りこむ | 1 | 4.86 |
| 雑種 | 1 | 4.94 |
| 気さく | 1 | 4.30 |
| 遅し | 1 | 5.54 |
| 応急策 | 1 | 7.42 |
| まとめ上げる | 1 | 5.28 |
| 少な目 | 1 | 5.37 |
| 兵隊 | 1 | 4.07 |
| 使い手 | 1 | 3.73 |
| 初体験 | 1 | 4.84 |
| ダブル | 1 | 4.47 |
| 国を治める | 1 | 5.20 |
| 分割 | 1 | 4.17 |
| 紛らわしい | 1 | 4.82 |
| お決まり | 1 | 4.60 |
| トレジャーハンター | 1 | 5.11 |
| 主人公 | 1 | 3.33 |
| 脱兎のごとく | 1 | 5.04 |
| ぐさりと | 1 | 5.59 |
| うやむや | 1 | 4.93 |
| 甘んじる | 1 | 4.37 |
| 名字 | 1 | 4.50 |
| 縷々 | 1 | 3.31 |
| 気持ちよい | 1 | 4.24 |
| 親交を深める | 1 | 5.34 |
| 恥ずかしながら | 1 | 4.62 |
| 言い残す | 1 | 4.02 |
| 出来たて | 1 | 4.90 |
| クソッ | 1 | 4.20 |
| くぎ付け | 1 | 5.64 |
| 嘗 | 1 | 4.42 |
| 投射 | 1 | 4.61 |
| ショート | 1 | 4.28 |
| シリーズ物 | 1 | 5.97 |
| 官爵 | 1 | 5.85 |
| 荒れた | 1 | 4.50 |
| 問答無用 | 1 | 4.02 |
| 冒す | 1 | 4.37 |
| 血まみれ | 1 | 4.40 |
| 突っ伏す | 1 | 4.13 |
| 凍り | 1 | 4.94 |
| キャラ | 1 | 3.48 |
| 相好を崩す | 1 | 5.03 |
| 境 | 1 | 4.09 |
| 亡くす | 1 | 4.05 |
| 亀裂 | 1 | 3.94 |
| プレイ | 1 | 3.85 |
| 包囲網 | 1 | 4.38 |
| 物とする | 1 | 4.64 |
| 散弾銃 | 1 | 5.27 |
| お早うございます | 1 | 5.19 |
| ヒソヒソ | 1 | 4.71 |
| 市街地 | 1 | 4.42 |
| 抜け出す | 1 | 3.74 |
| 落ちぶれる | 1 | 4.72 |
| に備えて | 1 | 3.91 |
| 景気よく | 1 | 5.29 |
| 書面 | 1 | 4.49 |
| 就寝時間 | 1 | 5.46 |
| 恋愛 | 1 | 3.65 |
| 力を入れる | 1 | 4.58 |
| 今日中に | 1 | 4.28 |
| 気が付く | 1 | 3.32 |
| 地理的 | 1 | 4.93 |
| 物言い | 1 | 3.78 |
| 貢献 | 1 | 4.04 |
| この先 | 1 | 3.52 |
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