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 |
|---|---|---|
| モテない | 1 | 4.80 |
| 平行 | 1 | 4.40 |
| 砂金 | 1 | 5.28 |
| 悴 | 1 | 4.87 |
| 簡易的 | 1 | 4.54 |
| 貸し手 | 1 | 4.62 |
| 肩を落とす | 1 | 4.28 |
| 編み出す | 1 | 4.36 |
| お構い | 1 | 4.87 |
| 見繕う | 1 | 4.37 |
| 持ち歩く | 1 | 4.25 |
| 後部 | 1 | 4.51 |
| ゴム毬 | 1 | 5.81 |
| お新香 | 1 | 5.41 |
| 坂 | 1 | 3.76 |
| その他もろもろ | 1 | 5.13 |
| 校 | 1 | 4.09 |
| 目盛 | 1 | 5.92 |
| 序 | 1 | 3.94 |
| 逸る | 1 | 4.51 |
| 刻印 | 1 | 4.00 |
| 中心地 | 1 | 4.62 |
| 平瓮 | 1 | 5.88 |
| 苦虫をかみつぶしたよう | 1 | 5.46 |
| 同色 | 1 | 4.78 |
| 不才 | 1 | 4.98 |
| 小首 | 1 | 4.02 |
| かえり | 1 | 5.11 |
| 英気を養う | 1 | 5.31 |
| 産物 | 1 | 4.37 |
| 見よう見まね | 1 | 4.99 |
| アパート | 1 | 4.28 |
| 受け取り | 1 | 3.68 |
| どうでも | 1 | 4.09 |
| 先決 | 1 | 4.55 |
| 抜き出す | 1 | 4.67 |
| 高め | 1 | 3.79 |
| 誤報 | 1 | 5.31 |
| 血の滲むよう | 1 | 5.40 |
| 召し上がる | 1 | 4.33 |
| 齢 | 1 | 4.39 |
| よだつ | 1 | 5.30 |
| 山ほど | 1 | 4.16 |
| 期待外れ | 1 | 4.98 |
| 包み | 1 | 3.81 |
| 盾 | 1 | 2.83 |
| あははは | 1 | 4.32 |
| 惨状 | 1 | 4.12 |
| 病みつき | 1 | 4.97 |
| 及く | 1 | 4.53 |
| 万事休す | 1 | 5.20 |
| 心がけ | 1 | 4.43 |
| 様子をうかがう | 1 | 5.09 |
| 徹底抗戦 | 1 | 4.92 |
| 一瞬にして | 1 | 3.88 |
| 犢鼻褌 | 1 | 4.77 |
| 作品 | 1 | 3.46 |
| 血の気 | 1 | 4.13 |
| 伐つ | 1 | 4.82 |
| 難し | 1 | 4.09 |
| 色々あって | 1 | 4.33 |
| 手間が省ける | 1 | 5.15 |
| 道なき道 | 1 | 5.07 |
| 目が離せない | 1 | 4.92 |
| 体温 | 1 | 3.99 |
| 現在地 | 1 | 4.59 |
| イマジネーション | 1 | 5.77 |
| 不在 | 1 | 3.86 |
| 怒鳴りつける | 1 | 4.33 |
| 失意 | 1 | 4.80 |
| 変心 | 1 | 5.62 |
| 妖異 | 1 | 5.80 |
| こんだけ | 1 | 4.59 |
| 暗黙 | 1 | 4.90 |
| 何それ | 1 | 3.89 |
| 気前のいい | 1 | 5.61 |
| 良薬 | 1 | 5.76 |
| そっぽを向く | 1 | 4.68 |
| 時計店 | 1 | 6.75 |
| 過酷 | 1 | 4.02 |
| 見積もる | 1 | 4.41 |
| 馴れ初め | 1 | 4.98 |
| 体毛 | 1 | 4.32 |
| シーズン | 1 | 4.69 |
| 計画的 | 1 | 4.81 |
| 境 | 1 | 4.09 |
| 仕掛ける | 1 | 3.51 |
| ホームタウン | 1 | 6.30 |
| ほらほら | 1 | 4.35 |
| ノーブラ | 1 | 5.83 |
| 三十一日 | 1 | 5.48 |
| まう | 1 | 4.56 |
| マンガ | 1 | 4.26 |
| 蓼 | 1 | 5.05 |
| 宴会場 | 1 | 4.94 |
| 心の奥 | 1 | 4.79 |
| 巡り | 1 | 4.05 |
| 気の抜けた | 1 | 4.51 |
| まやかし | 1 | 4.96 |
| 目視 | 1 | 4.25 |
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