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 |
|---|---|---|
| 勃つ | 3 | 4.12 |
| 細長い | 3 | 4.13 |
| 砂地 | 3 | 4.76 |
| デカい | 3 | 4.13 |
| 駆けだす | 3 | 4.55 |
| 一向に | 3 | 3.92 |
| 半径 | 3 | 4.21 |
| 会釈 | 3 | 4.14 |
| 移る | 3 | 3.53 |
| 結婚 | 3 | 2.95 |
| パワー | 3 | 3.68 |
| 受けつける | 3 | 5.63 |
| 押して | 3 | 3.73 |
| 追放 | 3 | 3.96 |
| 新調 | 3 | 4.43 |
| 感極まる | 3 | 4.36 |
| びっしり | 3 | 4.44 |
| 一番風呂 | 3 | 5.51 |
| 時間を稼ぐ | 3 | 4.36 |
| 突入 | 3 | 3.63 |
| 犯罪人 | 3 | 5.94 |
| 過ぎ去る | 3 | 4.24 |
| 口走る | 3 | 4.25 |
| 改める | 3 | 3.99 |
| 空高く | 3 | 4.53 |
| 洞窟 | 3 | 3.22 |
| 皮算用 | 3 | 5.20 |
| づつ | 3 | 4.68 |
| 等しい | 3 | 3.70 |
| 投入 | 3 | 3.76 |
| ふう | 3 | 3.64 |
| ヤバイ | 3 | 4.01 |
| 担ぎ | 3 | 4.22 |
| 称え | 3 | 4.37 |
| 臨時 | 3 | 4.04 |
| 湯気 | 3 | 4.04 |
| 懐 | 3 | 3.44 |
| 尽くす | 3 | 3.43 |
| 手首 | 3 | 3.69 |
| 募る | 3 | 3.96 |
| 容赦なく | 3 | 3.80 |
| 精いっぱい | 3 | 4.50 |
| 討つ | 3 | 3.74 |
| 送り込み | 3 | 4.90 |
| 深刻 | 3 | 3.83 |
| 否 | 3 | 3.49 |
| 嘆く | 3 | 3.87 |
| 何度 | 3 | 3.72 |
| 挑発 | 3 | 3.71 |
| 腐食 | 3 | 4.50 |
| 事務所 | 3 | 4.13 |
| 奇異 | 3 | 4.11 |
| 日増しに | 3 | 5.35 |
| 戻し | 3 | 3.62 |
| 倒れ込む | 3 | 3.92 |
| さっさと | 3 | 3.12 |
| 才能 | 3 | 3.30 |
| 一反 | 3 | 3.87 |
| 教育 | 3 | 3.34 |
| 溶岩 | 3 | 4.13 |
| 受勲者 | 3 | 6.59 |
| 戴ける | 3 | 3.72 |
| っぽい | 3 | 3.06 |
| うっとり | 3 | 4.07 |
| 制限 | 3 | 3.52 |
| 目当て | 3 | 3.87 |
| 寸前 | 3 | 3.62 |
| 選抜 | 3 | 4.36 |
| 手上げ | 3 | 3.61 |
| 燃える | 3 | 3.43 |
| 下士 | 3 | 4.57 |
| 健在 | 3 | 4.06 |
| 衣装 | 3 | 3.47 |
| 有機物 | 3 | 5.22 |
| 一直線 | 3 | 3.87 |
| 採れる | 3 | 4.11 |
| 両 | 3 | 3.38 |
| 縛りつける | 3 | 4.85 |
| 当主 | 3 | 3.36 |
| 調整 | 3 | 3.40 |
| 起こり | 3 | 4.04 |
| 最後まで | 3 | 3.43 |
| 希望 | 3 | 3.24 |
| 分かれる | 3 | 3.99 |
| 様相 | 3 | 4.02 |
| エスコート | 3 | 4.08 |
| じゃろう | 3 | 3.69 |
| 畳 | 3 | 4.04 |
| 防具 | 3 | 3.36 |
| 斬り刻む | 3 | 5.61 |
| や否や | 3 | 4.06 |
| コレクション | 3 | 4.51 |
| 大義 | 3 | 4.54 |
| ラフ | 3 | 4.24 |
| 多体 | 3 | 4.92 |
| 降る | 3 | 3.80 |
| 人目 | 3 | 3.91 |
| その手 | 3 | 3.34 |
| 萌え | 3 | 4.33 |
| 乞う | 3 | 4.46 |
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