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 |
|---|---|---|
| 差し支える | 1 | 4.98 |
| 言ってのける | 1 | 4.81 |
| 押しつける | 1 | 4.40 |
| 物とする | 1 | 4.64 |
| 形作る | 1 | 4.21 |
| 有耶無耶 | 1 | 4.86 |
| 隊を組む | 1 | 6.40 |
| 走り続ける | 1 | 4.72 |
| 取り返しがつかない | 1 | 5.00 |
| 脱兎 | 1 | 5.23 |
| 一声 | 1 | 4.20 |
| 言い残す | 1 | 4.02 |
| 軟 | 1 | 5.26 |
| お坊ちゃま | 1 | 5.05 |
| 無意味 | 1 | 3.75 |
| 危険極まりない | 1 | 4.97 |
| ホカホカ | 1 | 5.38 |
| 地割れ | 1 | 4.98 |
| 臣下 | 1 | 3.94 |
| クソ野郎 | 1 | 4.60 |
| 車中 | 1 | 5.44 |
| なぞ | 1 | 4.17 |
| 早足 | 1 | 4.34 |
| うなぎ登り | 1 | 5.50 |
| 鰐 | 1 | 4.09 |
| 失策 | 1 | 4.79 |
| 付随 | 1 | 4.55 |
| 幸福 | 1 | 3.74 |
| 腸 | 1 | 4.49 |
| 山なり | 1 | 5.25 |
| 狐 | 1 | 3.42 |
| ウネウネ | 1 | 5.20 |
| 止む | 1 | 3.86 |
| ワンダフォー | 1 | 7.05 |
| お釣りがくる | 1 | 5.53 |
| 少年少女 | 1 | 4.41 |
| 映え | 1 | 4.84 |
| 日永 | 1 | 4.91 |
| 小ぶり | 1 | 4.63 |
| 共々 | 1 | 4.10 |
| 極め | 1 | 4.64 |
| 搦み | 1 | 4.38 |
| ハンドバック | 1 | 6.26 |
| 言いぶり | 1 | 6.05 |
| 兵数 | 1 | 4.52 |
| 仮にも | 1 | 4.03 |
| 零 | 1 | 4.17 |
| カッと | 1 | 4.43 |
| 邪念 | 1 | 5.08 |
| とろける | 1 | 4.51 |
| 間抜け | 1 | 3.88 |
| ウサギ | 1 | 3.75 |
| 小首 | 1 | 4.02 |
| 受けつけ | 1 | 6.17 |
| 実地 | 1 | 4.83 |
| 集積 | 1 | 4.65 |
| 愉しい | 1 | 4.43 |
| 残りわずか | 1 | 5.30 |
| 覆水盆に返らず | 1 | 6.10 |
| 時速 | 1 | 4.16 |
| お早うございます | 1 | 5.19 |
| 二十年 | 1 | 4.25 |
| 来訪 | 1 | 4.06 |
| 眠気 | 1 | 4.06 |
| 銘打つ | 1 | 4.96 |
| 大感謝 | 1 | 5.69 |
| おいそれと | 1 | 4.50 |
| 発音 | 1 | 4.29 |
| バッサリ | 1 | 4.57 |
| 白熱 | 1 | 4.51 |
| 大統領 | 1 | 4.28 |
| 困窮 | 1 | 4.59 |
| ピンク | 1 | 3.89 |
| 押し倒す | 1 | 4.27 |
| 自己中心的 | 1 | 5.12 |
| 刺し身 | 1 | 5.10 |
| 張り出す | 1 | 4.68 |
| 凹凸 | 1 | 4.62 |
| よく言う | 1 | 4.67 |
| 笑い出す | 1 | 4.66 |
| 熟練 | 1 | 3.88 |
| 企み | 1 | 4.33 |
| 寝所 | 1 | 4.51 |
| 眼福 | 1 | 4.72 |
| 主役 | 1 | 4.03 |
| 向こう側 | 1 | 3.66 |
| 憔悴 | 1 | 4.54 |
| 抜きんでる | 1 | 5.22 |
| おかしな | 1 | 3.53 |
| 恐怖感 | 1 | 4.90 |
| 血まみれ | 1 | 4.40 |
| 血みどろ | 1 | 4.89 |
| 大魚 | 1 | 5.39 |
| 散り散り | 1 | 4.60 |
| 唐金 | 1 | 5.91 |
| マメ | 1 | 4.77 |
| もの凄い | 1 | 4.29 |
| 一考 | 1 | 4.90 |
| 朝晩 | 1 | 5.15 |
| ここの所 | 1 | 4.44 |
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