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 |
|---|---|---|
| 多対多 | 1 | 5.09 |
| 誘惑 | 1 | 4.00 |
| 泥路 | 1 | 4.73 |
| 副リーダー | 1 | 5.35 |
| 陰謀 | 1 | 4.28 |
| 陣取る | 1 | 4.07 |
| 専門店 | 1 | 4.75 |
| 軽装 | 1 | 4.22 |
| パラソル | 1 | 5.16 |
| 優先的 | 1 | 4.42 |
| 混ぜる | 1 | 3.60 |
| 熟考 | 1 | 4.92 |
| 委縮 | 1 | 4.85 |
| 地割れ | 1 | 4.98 |
| 中学生 | 1 | 4.11 |
| 撃退 | 1 | 3.82 |
| 言い分け | 1 | 4.35 |
| 人間業 | 1 | 5.33 |
| 利益 | 1 | 3.54 |
| 物とする | 1 | 4.64 |
| ひらり | 1 | 4.37 |
| それに加えて | 1 | 4.20 |
| 広め | 1 | 4.19 |
| 凄む | 1 | 4.69 |
| 身内びいき | 1 | 5.70 |
| コショウ | 1 | 5.13 |
| 爆弾 | 1 | 3.82 |
| 綱具 | 1 | 4.63 |
| 狐 | 1 | 3.42 |
| 差し支える | 1 | 4.98 |
| 書面 | 1 | 4.49 |
| トントン拍子 | 1 | 5.26 |
| 百も承知 | 1 | 4.68 |
| 孕ませ | 1 | 5.35 |
| えー | 1 | 3.52 |
| 参集 | 1 | 5.38 |
| 判明 | 1 | 3.66 |
| 成り立つ | 1 | 3.95 |
| 萎える | 1 | 4.82 |
| 顔合わせ | 1 | 4.25 |
| 狭量 | 1 | 4.90 |
| 守りきる | 1 | 5.25 |
| 行ってらっしゃい | 1 | 4.27 |
| 鄙 | 1 | 4.43 |
| 抜かり | 1 | 4.67 |
| 残念なことに | 1 | 4.41 |
| レジ | 1 | 4.62 |
| 同感 | 1 | 4.16 |
| 矢がら | 1 | 5.73 |
| 思われる | 1 | 4.11 |
| 突っ込み | 1 | 3.83 |
| 派手 | 1 | 3.46 |
| 顔から火が出る | 1 | 5.69 |
| 追いかけっこ | 1 | 4.50 |
| その他もろもろ | 1 | 5.13 |
| 誉れ高い | 1 | 5.40 |
| 灰汁 | 1 | 5.04 |
| ニ | 1 | 4.21 |
| 一定量 | 1 | 4.92 |
| 本年 | 1 | 4.96 |
| 家屋 | 1 | 4.17 |
| 富 | 1 | 3.79 |
| 片づけ | 1 | 4.21 |
| トラック | 1 | 4.25 |
| 対照的 | 1 | 3.99 |
| ぬるぬる | 1 | 5.24 |
| 共同開発 | 1 | 5.25 |
| 一桁 | 1 | 4.82 |
| プンプン | 1 | 4.81 |
| 奮発 | 1 | 4.82 |
| 歯がゆい | 1 | 4.69 |
| 尾根 | 1 | 4.61 |
| 使い手 | 1 | 3.73 |
| 国交 | 1 | 4.55 |
| 交付 | 1 | 5.66 |
| 今古 | 1 | 5.97 |
| 兼 | 1 | 3.80 |
| 躍る | 1 | 4.37 |
| 南西 | 1 | 4.30 |
| 玉砕 | 1 | 4.82 |
| 随分 | 1 | 3.06 |
| 動機 | 1 | 4.23 |
| 争う | 1 | 3.75 |
| 大がかり | 1 | 4.90 |
| 殴り飛ばす | 1 | 4.31 |
| マジ | 1 | 3.30 |
| 息を飲む | 1 | 4.59 |
| 憎い | 1 | 3.93 |
| 同色 | 1 | 4.78 |
| 打破 | 1 | 4.35 |
| 分かれ道 | 1 | 4.65 |
| 原本 | 1 | 5.12 |
| あっけらかん | 1 | 4.47 |
| 湖底 | 1 | 5.06 |
| 家具 | 1 | 3.97 |
| すぱっと | 1 | 4.98 |
| 鈍ら | 1 | 4.53 |
| 芝 | 1 | 4.67 |
| 材質 | 1 | 4.29 |
| 要素 | 1 | 3.51 |
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