The protagonist, reborn in a different world, raises his twin sister who was born with him, making use of his knowledge from his previous life. At first, unable to even communicate with words, the protagonist struggles desperately while studying hard! In contrast, his little sister is a genius beautiful girl who grows at a furious pace. But escalating even more than that is her love for big brother♪ ……Will he be able to guide his little sister in the right direction? We will bring you his desperate struggle in great detail, starting from age 0……really, very carefully indeed. By the way, big brother, aren't you also growing in quite a strange direction? ※If you click the title image of each episode...?
| Word | Frequency | Difficulty |
|---|---|---|
| 跳ね上がる | 13 | 4.06 |
| お誕生日席 | 13 | 5.86 |
| 失敬 | 13 | 4.56 |
| 差し込む | 13 | 3.84 |
| 年明け | 13 | 4.78 |
| 代々 | 13 | 4.04 |
| 振るった | 13 | 3.96 |
| 抜群 | 13 | 4.13 |
| 食む | 13 | 4.48 |
| 境地 | 13 | 4.59 |
| もしかしなくても | 13 | 4.60 |
| とやら | 13 | 3.43 |
| 出現 | 13 | 3.22 |
| お嫁さん | 13 | 4.21 |
| 口角 | 13 | 4.11 |
| 眼前 | 13 | 3.58 |
| いざという時 | 13 | 4.00 |
| 勇気 | 13 | 3.56 |
| 2 | 13 | 2.65 |
| ふにゃふにゃ | 13 | 5.09 |
| ごゆっくり | 13 | 4.61 |
| ロック | 13 | 3.59 |
| 害す | 13 | 4.17 |
| 改める | 13 | 3.99 |
| システム | 13 | 3.51 |
| 調 | 13 | 4.52 |
| 有効 | 13 | 3.53 |
| 丁寧語 | 13 | 5.16 |
| 毀れる | 13 | 4.50 |
| 口をつける | 13 | 4.75 |
| 入室 | 13 | 4.07 |
| 恋人 | 13 | 3.51 |
| 沿う | 13 | 4.19 |
| 国営 | 13 | 4.90 |
| 象徴 | 13 | 3.85 |
| だけの事はある | 13 | 4.48 |
| ひと安心 | 13 | 5.33 |
| ビクッと | 13 | 4.37 |
| 摩る | 13 | 4.53 |
| 一秒 | 13 | 4.11 |
| 仲間 | 13 | 2.81 |
| 補足 | 13 | 3.96 |
| 欠片 | 13 | 3.59 |
| 候補 | 13 | 3.53 |
| 伯耆 | 13 | 4.90 |
| ブラウン | 13 | 4.41 |
| 家事手伝い | 13 | 5.49 |
| 寛ぎ | 13 | 4.55 |
| 始末 | 13 | 3.55 |
| 仕上げ | 13 | 3.99 |
| 手洗い | 13 | 5.01 |
| 若く | 13 | 4.09 |
| 専ら | 13 | 4.38 |
| 訳もなく | 13 | 4.23 |
| 羽根 | 13 | 4.08 |
| 可愛がる | 13 | 4.20 |
| お決まり | 13 | 4.60 |
| 駆けつける | 13 | 3.76 |
| 授業中 | 13 | 4.53 |
| 光栄 | 13 | 3.87 |
| 襲いかかる | 13 | 3.59 |
| 名残惜しい | 13 | 4.26 |
| 投げ出す | 13 | 3.88 |
| 慈愛 | 13 | 4.16 |
| 見渡す | 13 | 3.63 |
| 六〇 | 13 | 4.99 |
| どころ | 13 | 3.88 |
| 泥絵 | 13 | 4.31 |
| 戦闘力 | 13 | 3.83 |
| 暑 | 13 | 4.85 |
| こほん | 13 | 4.62 |
| 元亀 | 13 | 5.01 |
| 乃公 | 13 | 3.15 |
| 間違っても | 13 | 4.20 |
| 隔離 | 13 | 4.14 |
| 付きっきり | 13 | 4.78 |
| 包囲 | 13 | 3.73 |
| 飲み込み | 13 | 4.25 |
| なんぞ | 13 | 3.85 |
| 落第 | 13 | 5.11 |
| 設備 | 13 | 3.81 |
| ヤル気 | 13 | 4.98 |
| お互い様 | 13 | 4.45 |
| 踏みしめる | 13 | 4.25 |
| 追い抜く | 13 | 4.55 |
| 並行 | 13 | 4.37 |
| 義理 | 13 | 3.91 |
| 要求 | 13 | 3.44 |
| 換気 | 13 | 4.79 |
| ひ孫 | 13 | 4.97 |
| 先っぽ | 13 | 5.20 |
| 話せる | 13 | 3.64 |
| 一瞬にして | 13 | 3.88 |
| お前達 | 13 | 3.57 |
| 尽くす | 13 | 3.43 |
| 主張 | 13 | 3.48 |
| 言い合う | 13 | 4.33 |
| 今にも | 13 | 3.62 |
| シビア | 13 | 4.74 |
| パラパラ | 13 | 4.49 |
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