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 |
|---|---|---|
| ほやほや | 1 | 5.18 |
| のたれ死ぬ | 1 | 6.11 |
| 力まかせ | 1 | 5.50 |
| 転舵 | 1 | 3.34 |
| 九割 | 1 | 4.61 |
| 出入り口 | 1 | 4.00 |
| 狩猟 | 1 | 4.18 |
| 一目瞭然 | 1 | 4.27 |
| 害 | 1 | 3.94 |
| 焠す | 1 | 5.50 |
| 大統領 | 1 | 4.28 |
| 筈ない | 1 | 4.42 |
| 範 | 1 | 5.19 |
| 冷笑 | 1 | 4.75 |
| 気楽に行こう | 1 | 5.95 |
| 鈍器 | 1 | 4.42 |
| 気力 | 1 | 3.86 |
| 調理人 | 1 | 5.12 |
| 見てくれ | 1 | 4.01 |
| 自画自賛 | 1 | 4.84 |
| 喋る | 1 | 3.37 |
| 眉間 | 1 | 3.66 |
| 経て | 1 | 3.83 |
| 難色 | 1 | 4.61 |
| 勇者 | 1 | 2.61 |
| 動じる | 1 | 4.07 |
| 腹時計 | 1 | 5.67 |
| 陥没 | 1 | 4.46 |
| 度量 | 1 | 4.69 |
| 擦れ合う | 1 | 5.18 |
| 弱い者 | 1 | 4.73 |
| 二十七 | 1 | 4.91 |
| 滲みる | 1 | 4.83 |
| 威圧感 | 1 | 3.89 |
| 休養 | 1 | 4.47 |
| 防災 | 1 | 5.51 |
| これ等 | 1 | 3.57 |
| 滲む | 1 | 3.60 |
| 追いやる | 1 | 4.06 |
| フル活用 | 1 | 5.11 |
| 洗い物 | 1 | 4.73 |
| 若輩 | 1 | 5.01 |
| ワサワサ | 1 | 5.81 |
| 内装 | 1 | 4.18 |
| 無意味 | 1 | 3.75 |
| 体感 | 1 | 4.13 |
| 何にも | 1 | 3.92 |
| 本もの | 1 | 4.58 |
| 高三 | 1 | 5.96 |
| 柄物 | 1 | 6.13 |
| 燃え上がる | 1 | 4.04 |
| 互角 | 1 | 4.02 |
| 干渉 | 1 | 3.54 |
| 思いをする | 1 | 4.62 |
| ペシペシ | 1 | 5.07 |
| 呼びつける | 1 | 4.39 |
| 差し上げ | 1 | 4.65 |
| 走馬灯 | 1 | 4.78 |
| 畏まった | 1 | 4.77 |
| 駆られる | 1 | 4.58 |
| この様に | 1 | 3.80 |
| 実益 | 1 | 5.15 |
| 感謝の言葉もない | 1 | 5.90 |
| 仕舞い | 1 | 4.41 |
| 小手調べ | 1 | 4.93 |
| 象 | 1 | 4.41 |
| 老紳士 | 1 | 4.77 |
| 冷んやり | 1 | 4.32 |
| 担う | 1 | 3.72 |
| 曲げる | 1 | 4.20 |
| 国内外 | 1 | 4.84 |
| 要人 | 1 | 4.30 |
| 左後ろ | 1 | 5.52 |
| 武具 | 1 | 3.58 |
| 試験勉強 | 1 | 5.43 |
| 権威 | 1 | 4.01 |
| 終わりまで | 1 | 5.11 |
| 改訂 | 1 | 5.14 |
| エアガン | 1 | 5.41 |
| 載せる | 1 | 3.79 |
| 免 | 1 | 4.71 |
| 膜 | 1 | 4.11 |
| ケチる | 1 | 5.47 |
| なんてね | 1 | 4.45 |
| 芋掘り | 1 | 5.99 |
| 期 | 1 | 3.93 |
| う歯 | 1 | 4.60 |
| これより | 1 | 3.96 |
| 誕生 | 1 | 3.78 |
| 人らしい | 1 | 4.91 |
| 仕末 | 1 | 5.81 |
| 武勇伝 | 1 | 4.68 |
| おかしな | 1 | 3.53 |
| 逃げ込む | 1 | 4.06 |
| 良くやった | 1 | 4.11 |
| 御御足 | 1 | 6.05 |
| 朝礼 | 1 | 5.15 |
| 溜めこむ | 1 | 5.09 |
| 順を追って | 1 | 4.90 |
| 立て替える | 1 | 5.69 |
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