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 |
|---|---|---|
| 活性化 | 2 | 3.96 |
| 母娘 | 2 | 4.76 |
| 版 | 2 | 3.77 |
| 諦め顔 | 2 | 5.56 |
| 才 | 2 | 3.78 |
| 献立 | 2 | 4.38 |
| 畳む | 2 | 4.31 |
| 揺らす | 2 | 3.50 |
| アグレッシブ | 2 | 5.14 |
| 仕立て | 2 | 4.05 |
| 意義 | 2 | 4.42 |
| 願い | 2 | 3.38 |
| 有力者 | 2 | 4.36 |
| ザル | 2 | 4.59 |
| 鍛え | 2 | 3.51 |
| 新妻 | 2 | 5.03 |
| もて | 2 | 4.27 |
| 真ん中 | 2 | 3.53 |
| 寝泊まり | 2 | 4.40 |
| 一人娘 | 2 | 4.52 |
| 手間取る | 2 | 4.29 |
| 独身 | 2 | 4.28 |
| 水量 | 2 | 4.78 |
| 増加 | 2 | 3.35 |
| 心休まる | 2 | 5.40 |
| 切りかかる | 2 | 4.57 |
| めげる | 2 | 4.62 |
| 吊り | 2 | 4.40 |
| 仮眠 | 2 | 4.51 |
| あちら | 2 | 3.50 |
| ぬめる | 2 | 5.90 |
| 退ける | 2 | 3.79 |
| 分かりにくい | 2 | 4.37 |
| 自前 | 2 | 4.19 |
| 噴出 | 2 | 4.14 |
| 極まり | 2 | 4.99 |
| 隅々 | 2 | 4.37 |
| 一昨日 | 2 | 4.19 |
| 家庭 | 2 | 3.90 |
| 瀕死 | 2 | 4.18 |
| かなぁ | 2 | 3.70 |
| 重点的 | 2 | 4.63 |
| 数十年 | 2 | 4.25 |
| 帯びる | 2 | 3.63 |
| 遺跡 | 2 | 3.39 |
| 指定単 | 2 | 4.13 |
| 成っていない | 2 | 3.89 |
| それじゃ | 2 | 3.39 |
| 下地 | 2 | 4.59 |
| 投げ出す | 2 | 3.88 |
| 忝い | 2 | 4.93 |
| 兵力 | 2 | 3.70 |
| 噴火 | 2 | 4.58 |
| やたら | 2 | 3.66 |
| 真っさら | 2 | 5.02 |
| 構える | 2 | 3.27 |
| 凸る | 2 | 5.81 |
| チープ | 2 | 5.38 |
| 温度 | 2 | 3.78 |
| 掘削 | 2 | 4.13 |
| 大人しい | 2 | 3.95 |
| ルビー | 2 | 3.98 |
| 鬱蒼 | 2 | 4.56 |
| 終了後 | 2 | 4.56 |
| 不公平 | 2 | 4.50 |
| 交代で | 2 | 4.17 |
| すぐそこ | 2 | 4.40 |
| 開放 | 2 | 3.85 |
| 辟易 | 2 | 4.34 |
| まずあり得ない | 2 | 4.94 |
| 商店 | 2 | 4.05 |
| 待ち遠しい | 2 | 4.71 |
| 元手 | 2 | 4.39 |
| 身につける | 2 | 4.51 |
| 望む | 2 | 3.04 |
| 俯き | 2 | 4.22 |
| 正しく | 2 | 3.40 |
| 打っ | 2 | 3.65 |
| 凶々しい | 2 | 5.59 |
| 片付ける | 2 | 3.82 |
| だらしない | 2 | 4.53 |
| ノック | 2 | 3.54 |
| シャフト | 2 | 4.56 |
| 選民意識 | 2 | 5.43 |
| 煌めく | 2 | 4.17 |
| おお | 2 | 2.89 |
| かん高い | 2 | 5.88 |
| ないで | 2 | 4.00 |
| ボディライン | 2 | 5.24 |
| だよね | 2 | 3.23 |
| ゴチャゴチャ | 2 | 5.05 |
| 数え | 2 | 3.89 |
| はしたない | 2 | 4.37 |
| 着せる | 2 | 3.98 |
| 跡取り | 2 | 4.25 |
| 目覚ましい | 2 | 4.97 |
| 踏み込む | 2 | 3.57 |
| 聞きだす | 2 | 4.81 |
| 進行 | 2 | 3.82 |
| 甘み | 2 | 4.11 |
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