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 |
|---|---|---|
| 色白 | 1 | 4.71 |
| モテ男 | 1 | 5.53 |
| 軒 | 1 | 4.27 |
| 付着 | 1 | 4.32 |
| やせ細る | 1 | 5.00 |
| 取っかえ引っかえ | 1 | 5.65 |
| 延期 | 1 | 4.63 |
| 及ぶ | 1 | 3.48 |
| 灯 | 1 | 3.92 |
| 三懸 | 1 | 5.06 |
| ゴミ箱 | 1 | 4.65 |
| 元来 | 1 | 4.37 |
| 快感 | 1 | 4.52 |
| 反する | 1 | 4.38 |
| 陰に | 1 | 4.11 |
| 快打 | 1 | 5.51 |
| 狙いをつける | 1 | 5.26 |
| 賄い | 1 | 4.69 |
| 細かいこと | 1 | 4.34 |
| 割とどうでもいい | 1 | 5.45 |
| 互角 | 1 | 4.02 |
| 奇跡的 | 1 | 4.45 |
| 大掃除 | 1 | 4.98 |
| 酔う | 1 | 3.78 |
| イヌ | 1 | 4.86 |
| お断り | 1 | 3.92 |
| プカプカ | 1 | 5.07 |
| 配当金 | 1 | 5.83 |
| 酒屋 | 1 | 4.96 |
| 放題 | 1 | 4.29 |
| 何頭 | 1 | 4.91 |
| 涙ぐむ | 1 | 4.42 |
| 飛びあがる | 1 | 5.66 |
| リア充 | 1 | 4.39 |
| 説 | 1 | 4.09 |
| 張り切る | 1 | 4.02 |
| それでいて | 1 | 3.72 |
| 岸 | 1 | 4.49 |
| うまいこと | 1 | 4.68 |
| 揺ら揺ら | 1 | 4.28 |
| 甲斐がある | 1 | 4.63 |
| 順路 | 1 | 5.01 |
| 衣服 | 1 | 3.77 |
| 改定 | 1 | 5.19 |
| ほほ笑む | 1 | 4.65 |
| 関係者 | 1 | 3.56 |
| かつてない | 1 | 4.53 |
| 活力 | 1 | 4.41 |
| 破邪 | 1 | 4.63 |
| 負の感情 | 1 | 4.39 |
| 拡大 | 1 | 3.61 |
| 寄りつく | 1 | 5.20 |
| 捗る | 1 | 4.48 |
| 有機 | 1 | 5.38 |
| 想定外 | 1 | 4.00 |
| 真っ暗 | 1 | 3.97 |
| 畳敷きの部屋 | 1 | 6.39 |
| に過ぎない | 1 | 3.53 |
| 小高い | 1 | 5.06 |
| 照れ笑い | 1 | 4.97 |
| 林 | 1 | 3.72 |
| 花火 | 1 | 4.08 |
| 想像力 | 1 | 4.49 |
| いいとも | 1 | 4.87 |
| カウント | 1 | 4.34 |
| 刺々しい | 1 | 4.70 |
| 小魚 | 1 | 4.66 |
| バネ | 1 | 4.58 |
| 集い | 1 | 4.55 |
| 引き立てる | 1 | 4.95 |
| 解体 | 1 | 3.41 |
| 長大 | 1 | 4.40 |
| 媚び | 1 | 4.75 |
| 落ちぶれる | 1 | 4.72 |
| 清廉 | 1 | 4.66 |
| 鼓動 | 1 | 3.91 |
| 所持 | 1 | 3.81 |
| 丸出し | 1 | 4.42 |
| 暮らす | 1 | 3.59 |
| 気位 | 1 | 4.93 |
| 口外 | 1 | 4.62 |
| 何のこと | 1 | 3.95 |
| よっしゃ | 1 | 4.30 |
| スペシャリスト | 1 | 5.03 |
| 原石 | 1 | 4.52 |
| 天空 | 1 | 3.91 |
| 砕ける | 1 | 4.19 |
| 許容範囲 | 1 | 4.56 |
| 闘争 | 1 | 4.16 |
| ばった | 1 | 4.90 |
| 状況判断 | 1 | 4.88 |
| 弁え | 1 | 4.20 |
| 焼酎 | 1 | 4.90 |
| 満杯 | 1 | 5.03 |
| 三山 | 1 | 4.20 |
| 消失 | 1 | 3.86 |
| 当の本人 | 1 | 4.31 |
| ウェイター | 1 | 5.02 |
| 呼びつける | 1 | 4.39 |
| 平常心 | 1 | 4.61 |
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