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 |
|---|---|---|
| 巣くう | 1 | 4.85 |
| 楽勝 | 1 | 4.27 |
| であるから | 1 | 3.77 |
| 体感 | 1 | 4.13 |
| かき混ぜる | 1 | 4.47 |
| ペア | 1 | 4.19 |
| 逆側 | 1 | 4.75 |
| 数か月 | 1 | 4.46 |
| どこの馬の骨 | 1 | 5.00 |
| アドレナリン | 1 | 5.15 |
| 驕り | 1 | 4.81 |
| ご苦労さん | 1 | 4.72 |
| 手間が省ける | 1 | 5.15 |
| 腹時計 | 1 | 5.67 |
| スカスカ | 1 | 5.12 |
| ダルマ | 1 | 4.88 |
| 脳出血 | 1 | 6.36 |
| 現在地 | 1 | 4.59 |
| 裏付ける | 1 | 4.69 |
| 学友 | 1 | 4.52 |
| 演じる | 1 | 3.88 |
| 冬山 | 1 | 5.82 |
| 客足 | 1 | 4.87 |
| 越す | 1 | 3.95 |
| 最長 | 1 | 4.89 |
| 色めく | 1 | 4.97 |
| 逸る | 1 | 4.51 |
| 先決 | 1 | 4.55 |
| 何百 | 1 | 3.96 |
| 仕方なく | 1 | 3.79 |
| 問答無用 | 1 | 4.02 |
| 済まぬ | 1 | 4.29 |
| 焼き | 1 | 3.55 |
| 安易 | 1 | 4.13 |
| 目配せ | 1 | 4.15 |
| 職業柄 | 1 | 5.09 |
| 凡そ | 1 | 3.59 |
| 押し上げ | 1 | 4.59 |
| 材質 | 1 | 4.29 |
| 携わる | 1 | 4.24 |
| 畏まった | 1 | 4.77 |
| 思わしい | 1 | 4.50 |
| 無意味 | 1 | 3.75 |
| あり様 | 1 | 4.83 |
| ちょ | 1 | 3.41 |
| ってば | 1 | 3.84 |
| 縮こまる | 1 | 4.29 |
| なりに | 1 | 4.03 |
| 物思いにふける | 1 | 5.60 |
| 大幅 | 1 | 3.84 |
| 明るみ | 1 | 4.82 |
| 逮捕 | 1 | 4.26 |
| 雲行きが怪しい | 1 | 5.68 |
| 専門的 | 1 | 4.70 |
| 矢がら | 1 | 5.73 |
| 恥を忍ぶ | 1 | 6.99 |
| 常識的 | 1 | 4.25 |
| 茶色い | 1 | 4.20 |
| 切り取り | 1 | 4.99 |
| 考 | 1 | 3.19 |
| 核爆発 | 1 | 5.71 |
| 入り込み | 1 | 4.61 |
| 心神 | 1 | 5.28 |
| 鈍器 | 1 | 4.42 |
| 投げ飛ばす | 1 | 4.36 |
| ヘラヘラ | 1 | 4.79 |
| 暴力的 | 1 | 4.46 |
| 育てる | 1 | 3.68 |
| お弁当 | 1 | 4.01 |
| 対策を講じる | 1 | 5.54 |
| 蛇 | 1 | 3.25 |
| 要領 | 1 | 4.07 |
| 区別 | 1 | 4.02 |
| 真っ青 | 1 | 3.96 |
| 兄ちゃん | 1 | 3.55 |
| 大絶賛 | 1 | 5.22 |
| 逆にいえば | 1 | 5.26 |
| 苦虫をかみつぶしたよう | 1 | 5.46 |
| ニッパー | 1 | 6.45 |
| 本筋 | 1 | 4.87 |
| 乱立 | 1 | 4.76 |
| お祭り | 1 | 4.03 |
| 役人 | 1 | 4.03 |
| 兵隊 | 1 | 4.07 |
| 物理 | 1 | 3.28 |
| 敷地面積 | 1 | 5.23 |
| 無き | 1 | 4.12 |
| できる限り | 1 | 4.09 |
| 保管 | 1 | 3.85 |
| 野良猫 | 1 | 4.99 |
| マジ | 1 | 3.30 |
| 停車 | 1 | 4.69 |
| 一桁 | 1 | 4.82 |
| 保障 | 1 | 4.19 |
| 転舵 | 1 | 3.34 |
| 勝るとも劣らぬ | 1 | 5.44 |
| ヤジを飛ばす | 1 | 6.26 |
| まやかし | 1 | 4.96 |
| アヒル口 | 1 | 5.97 |
| 闘争 | 1 | 4.16 |
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