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 |
|---|---|---|
| 結婚 | 3 | 2.95 |
| 乗車 | 3 | 5.02 |
| 路 | 3 | 3.84 |
| 茶碗 | 3 | 4.66 |
| スクラップ | 3 | 5.10 |
| 嘘 | 3 | 2.93 |
| 画期的 | 3 | 4.69 |
| 子供たち | 3 | 3.38 |
| 力持ち | 3 | 4.83 |
| 合間 | 3 | 3.95 |
| 頑 | 3 | 4.23 |
| 注ぐ | 3 | 3.35 |
| 尽くす | 3 | 3.43 |
| 発破 | 3 | 4.87 |
| 趣味 | 3 | 3.37 |
| さあ | 3 | 3.10 |
| 被る | 3 | 3.46 |
| 比 | 3 | 3.96 |
| 会釈 | 3 | 4.14 |
| 野宿 | 3 | 4.19 |
| 萌え | 3 | 4.33 |
| 森の奥 | 3 | 4.09 |
| 強度 | 3 | 3.77 |
| 詰め寄る | 3 | 3.85 |
| シワ | 3 | 4.50 |
| ややこしい | 3 | 4.11 |
| 目処 | 3 | 4.45 |
| 最後まで | 3 | 3.43 |
| バラバラ | 3 | 3.83 |
| 忌まわしい | 3 | 4.48 |
| 施す | 3 | 3.52 |
| 突入 | 3 | 3.63 |
| 廃止 | 3 | 4.70 |
| 見当もつかない | 3 | 4.71 |
| 泣く | 3 | 3.07 |
| 誠に | 3 | 4.22 |
| 比類 | 3 | 4.97 |
| 目覚め | 3 | 3.78 |
| 無礼 | 3 | 3.80 |
| 手上げ | 3 | 3.61 |
| 崇拝 | 3 | 4.46 |
| 引き戻す | 3 | 4.12 |
| 補足 | 3 | 3.96 |
| 咆哮 | 3 | 3.55 |
| 一から | 3 | 4.17 |
| 見てのとおり | 3 | 5.15 |
| 傾き | 3 | 4.25 |
| ニー | 3 | 5.62 |
| 厭がる | 3 | 4.39 |
| 一度も | 3 | 3.58 |
| からには | 3 | 3.85 |
| 踏み入れる | 3 | 3.82 |
| 卑屈 | 3 | 4.54 |
| はあっ | 3 | 3.75 |
| たった今 | 3 | 4.17 |
| 一刀両断 | 3 | 4.50 |
| ホヤ | 3 | 5.58 |
| 目がない | 3 | 4.87 |
| 申し訳 | 3 | 3.60 |
| 睨む | 3 | 3.25 |
| 切り取る | 3 | 4.22 |
| 資料 | 3 | 3.47 |
| 曲がる | 3 | 3.96 |
| ハンパない | 3 | 5.12 |
| 切っ先 | 3 | 3.89 |
| 騒ぎ | 3 | 3.37 |
| 半ば | 3 | 3.39 |
| お手伝い | 3 | 3.83 |
| メジナ | 3 | 6.61 |
| 言い出しっぺ | 3 | 5.24 |
| テキパキ | 3 | 4.72 |
| ふう | 3 | 3.64 |
| 簡易 | 3 | 3.87 |
| 引き揚げ | 3 | 5.14 |
| 立たす | 3 | 4.35 |
| ステキ | 3 | 4.77 |
| 扱い方 | 3 | 4.50 |
| 飛びたつ | 3 | 5.86 |
| 下っ端 | 3 | 4.31 |
| 国境 | 3 | 3.58 |
| 切 | 3 | 3.67 |
| 水着 | 3 | 3.89 |
| 選択 | 3 | 3.26 |
| 大声 | 3 | 3.45 |
| 両膝 | 3 | 4.66 |
| 引き渡し | 3 | 4.48 |
| 並走 | 3 | 4.59 |
| 横たわる | 3 | 3.82 |
| 懐 | 3 | 3.44 |
| 引っ込む | 3 | 4.05 |
| 添える | 3 | 3.65 |
| 全域 | 3 | 4.38 |
| 始める | 3 | 2.48 |
| 引き締め | 3 | 4.07 |
| 二つ目 | 3 | 4.11 |
| 結局のところ | 3 | 4.05 |
| スーツ姿 | 3 | 4.79 |
| 踏ん切り | 3 | 4.92 |
| 目当て | 3 | 3.87 |
| 裏付け | 3 | 4.56 |
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