★Novelized by Overlap Bunko. Series cumulative sales exceed 1 million copies. All 13 volumes now on sale. Once, the boy was called the "God of War." He saved a fallen nation in the otherworld called Alethia, and through conquering surrounding countries, he built a great empire. However, the boy made the resolve to abandon everything and returned to the modern era at the cost of losing his memory. Three years have passed, and the boy was living his days happily. But then he is summoned back to the otherworld once more. However, it was Alethia 1,000 years in the future. His past glory has become "myth," and the "legend" of the boy called the "Dual Black Hero King" begins to unfold.
| Word | Frequency | Difficulty |
|---|---|---|
| 却って | 2 | 3.83 |
| からしたら | 2 | 4.16 |
| 昨日 | 2 | 2.87 |
| 沈痛 | 2 | 4.62 |
| 変に | 2 | 3.93 |
| 大粒 | 2 | 4.41 |
| とて | 2 | 3.45 |
| さようなら | 2 | 4.34 |
| 小動物 | 2 | 4.13 |
| 圧倒 | 2 | 3.78 |
| 馬鹿馬鹿しい | 2 | 4.27 |
| 死んでいる | 2 | 4.02 |
| 無かろう | 2 | 3.79 |
| 舞い | 2 | 4.05 |
| 振りかかる | 2 | 5.37 |
| 乗り上げる | 2 | 5.00 |
| 豪華 | 2 | 3.71 |
| おごる | 2 | 4.62 |
| 雪化粧 | 2 | 5.53 |
| 過剰 | 2 | 3.90 |
| 行き着く | 2 | 4.28 |
| 発言 | 2 | 3.13 |
| ニッと | 2 | 4.86 |
| 照れる | 2 | 3.93 |
| 伴う | 2 | 3.51 |
| 達 | 2 | 1.88 |
| 西方 | 2 | 3.91 |
| 見逃し | 2 | 3.99 |
| 義務 | 2 | 3.73 |
| 声をかける | 2 | 3.47 |
| 体内 | 2 | 3.59 |
| タオル | 2 | 3.85 |
| いきなり | 2 | 2.95 |
| 失笑 | 2 | 4.60 |
| ー | 2 | 2.29 |
| 飛来 | 2 | 3.89 |
| 間違い | 2 | 3.21 |
| 威圧 | 2 | 3.73 |
| 似つく | 2 | 4.06 |
| 急いで | 2 | 3.33 |
| 応える | 2 | 3.51 |
| 生者 | 2 | 4.53 |
| 慎重 | 2 | 3.46 |
| 抱き留める | 2 | 4.81 |
| 素直 | 2 | 3.05 |
| 帰す | 2 | 3.93 |
| 凜々しい | 2 | 5.65 |
| 大男 | 2 | 3.93 |
| クラス | 2 | 3.02 |
| 目指し | 2 | 3.53 |
| 濡らす | 2 | 4.14 |
| 取り調べ | 2 | 4.63 |
| そうそう | 2 | 3.36 |
| 戦死 | 2 | 4.22 |
| きらり | 2 | 4.35 |
| 南区 | 2 | 5.27 |
| 守護 | 2 | 3.40 |
| 面白い | 2 | 2.98 |
| 他ない | 2 | 4.18 |
| 何としてでも | 2 | 4.41 |
| 久しぶり | 2 | 3.40 |
| 何でもない | 2 | 3.50 |
| 籠城 | 2 | 4.33 |
| 振りかぶる | 2 | 3.96 |
| 面影 | 2 | 4.21 |
| だらり | 2 | 4.54 |
| だい | 2 | 3.56 |
| ふためく | 2 | 4.59 |
| ほど遠い | 2 | 4.75 |
| 後継者 | 2 | 4.01 |
| 縋る | 2 | 3.77 |
| 水平 | 2 | 4.27 |
| に付き | 2 | 3.90 |
| 大変 | 2 | 2.84 |
| 抑え | 2 | 3.28 |
| 無謀 | 2 | 3.84 |
| 黒眼 | 2 | 5.40 |
| 浴びせる | 2 | 3.91 |
| 歩む | 2 | 3.82 |
| 生物 | 2 | 3.23 |
| 奇跡 | 2 | 3.58 |
| 扱い | 2 | 3.04 |
| 歯を食いしばる | 2 | 4.88 |
| 確かめる | 2 | 3.49 |
| 示す | 2 | 3.10 |
| 谷 | 2 | 3.76 |
| 加速 | 2 | 3.47 |
| おしまい | 2 | 4.09 |
| 自分で | 2 | 2.97 |
| 構う | 2 | 3.29 |
| 常備 | 2 | 4.63 |
| 跪く | 2 | 3.81 |
| 持ち帰る | 2 | 3.86 |
| 刀祢 | 2 | 3.76 |
| 熱気 | 2 | 4.01 |
| 道を開く | 2 | 5.45 |
| 縮む | 2 | 4.34 |
| レベル | 2 | 2.66 |
| 上がり | 2 | 3.47 |
| 悶える | 2 | 4.61 |
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