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 |
|---|---|---|
| 路 | 3 | 3.84 |
| 流し込む | 3 | 3.92 |
| 何だい | 3 | 3.95 |
| でしたら | 3 | 3.49 |
| 印象 | 3 | 3.24 |
| 見渡し | 3 | 3.86 |
| 年季 | 3 | 4.60 |
| 食い込む | 3 | 4.17 |
| 憎たらしい | 3 | 4.64 |
| 婆さん | 3 | 3.91 |
| 闇夜 | 3 | 4.41 |
| 決意 | 3 | 3.41 |
| 住まい | 3 | 4.44 |
| 伐る | 3 | 3.95 |
| 注ぐ | 3 | 3.35 |
| 永久 | 3 | 4.27 |
| 容易い | 3 | 3.61 |
| ありったけ | 3 | 4.44 |
| 人的被害 | 3 | 4.99 |
| 声高 | 3 | 4.53 |
| 荒らし | 3 | 4.48 |
| 乗馬 | 3 | 4.34 |
| 犯罪人 | 3 | 5.94 |
| 小さい頃 | 3 | 4.07 |
| よって | 3 | 3.62 |
| 正月 | 3 | 4.52 |
| 地殻変動 | 3 | 5.49 |
| 感極まる | 3 | 4.36 |
| ふかふか | 3 | 4.41 |
| パーセント | 3 | 4.11 |
| 才能 | 3 | 3.30 |
| エリア | 3 | 3.49 |
| 萌え | 3 | 4.33 |
| いち早く | 3 | 4.22 |
| パンパン | 3 | 4.46 |
| 万感 | 3 | 4.91 |
| 奥行き | 3 | 4.87 |
| 冷え込み | 3 | 5.43 |
| 笑い声 | 3 | 3.54 |
| とっても | 3 | 3.57 |
| 証明 | 3 | 3.41 |
| 向かい合う | 3 | 3.83 |
| お愛想 | 3 | 5.90 |
| 全くと言っていいほど | 3 | 4.94 |
| 何なら | 3 | 3.90 |
| さあ | 3 | 3.10 |
| 隅 | 3 | 3.59 |
| 刑罰 | 3 | 4.82 |
| 見てのとおり | 3 | 5.15 |
| 捌く | 3 | 4.09 |
| 勇気 | 3 | 3.56 |
| 記す | 3 | 3.70 |
| これまで | 3 | 3.00 |
| 促す | 3 | 3.30 |
| 燃える | 3 | 3.43 |
| 羽目 | 3 | 3.96 |
| 地平線 | 3 | 4.36 |
| 下らない | 3 | 3.81 |
| 秘技 | 3 | 5.01 |
| せめてもの | 3 | 4.30 |
| 軸受け | 3 | 5.76 |
| 向き | 3 | 3.61 |
| 微妙 | 3 | 3.20 |
| 嘆く | 3 | 3.87 |
| 悩み | 3 | 3.65 |
| 健在 | 3 | 4.06 |
| でないと | 3 | 3.83 |
| 先ほど | 3 | 2.88 |
| 噛みつく | 3 | 4.09 |
| 引き渡す | 3 | 4.26 |
| 此度 | 3 | 4.07 |
| 戴ける | 3 | 3.72 |
| こら | 3 | 3.74 |
| 滑り落ちる | 3 | 4.53 |
| この辺 | 3 | 3.73 |
| 膂力 | 3 | 4.10 |
| 鬼の形相 | 3 | 4.93 |
| 一刻も早く | 3 | 4.09 |
| お手伝い | 3 | 3.83 |
| 心待ち | 3 | 4.61 |
| 否応なく | 3 | 4.69 |
| 見極める | 3 | 4.09 |
| 候 | 3 | 4.09 |
| 超高級 | 3 | 5.08 |
| 後々 | 3 | 3.94 |
| 一に | 3 | 4.26 |
| うむ | 3 | 3.03 |
| 褒章 | 3 | 5.19 |
| 一度も | 3 | 3.58 |
| 浮かれる | 3 | 4.03 |
| 冷める | 3 | 3.72 |
| 裏付け | 3 | 4.56 |
| 幼芽 | 3 | 3.74 |
| 尻餅 | 3 | 4.45 |
| 喰う | 3 | 3.59 |
| 本陣 | 3 | 3.99 |
| 丸 | 3 | 3.59 |
| 侯 | 3 | 4.05 |
| 無きゃ | 3 | 3.95 |
| 噴水 | 3 | 4.09 |
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