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 |
|---|---|---|
| 不覚 | 3 | 4.64 |
| 貴婦人 | 3 | 4.19 |
| 悲喜こもごも | 3 | 5.80 |
| 仲間入り | 3 | 4.65 |
| 距離を開ける | 3 | 5.53 |
| 河 | 3 | 3.94 |
| 槌 | 3 | 3.84 |
| 次ぐ身 | 3 | 5.29 |
| 食事時 | 3 | 5.10 |
| 学術的 | 3 | 5.25 |
| ダイヤ | 3 | 4.60 |
| ボール遊び | 3 | 5.63 |
| 一端 | 3 | 4.01 |
| 強固 | 3 | 3.94 |
| 男女別 | 3 | 5.09 |
| 内気 | 3 | 4.98 |
| スリル | 3 | 3.73 |
| 石橋 | 3 | 5.05 |
| 然もなくば | 3 | 4.85 |
| 伝承 | 3 | 4.04 |
| バー | 3 | 3.69 |
| 国防省 | 3 | 6.26 |
| 思考停止 | 3 | 4.84 |
| 着任 | 3 | 4.86 |
| 丸襟 | 3 | 6.51 |
| この所 | 3 | 4.56 |
| 駄々をこねる | 3 | 4.88 |
| ホコリっぽい | 3 | 6.43 |
| カタカナ | 3 | 5.03 |
| 口当たり | 3 | 4.97 |
| 一羽 | 3 | 4.63 |
| 手出し | 3 | 4.06 |
| ひと肌 | 3 | 5.84 |
| 獰猛 | 3 | 4.02 |
| 思しき | 3 | 3.93 |
| その名の通り | 3 | 4.33 |
| 騒音 | 3 | 4.58 |
| 七〇 | 3 | 5.25 |
| 人型 | 3 | 3.63 |
| 達成 | 3 | 3.61 |
| 前例 | 3 | 4.29 |
| 革靴 | 3 | 4.87 |
| アンダースカート | 3 | 7.11 |
| 断片 | 3 | 4.75 |
| 困ったこと | 3 | 4.52 |
| チャラい | 3 | 5.21 |
| ワイン | 3 | 3.73 |
| 爆 | 3 | 4.21 |
| 無手 | 3 | 4.57 |
| 一年半 | 3 | 4.90 |
| ヒラヒラ | 3 | 4.63 |
| よじ登る | 3 | 4.47 |
| 丁度良い | 3 | 4.17 |
| タルト | 3 | 4.59 |
| 仕事部屋 | 3 | 5.26 |
| 別人 | 3 | 4.00 |
| お姫様抱っこ | 3 | 4.53 |
| ゴールド | 3 | 4.23 |
| 守秘義務 | 3 | 5.08 |
| 出物 | 3 | 4.87 |
| 突如として | 3 | 3.94 |
| 陥る | 3 | 3.50 |
| 唄 | 3 | 4.32 |
| 巻 | 3 | 3.40 |
| 妊婦 | 3 | 4.61 |
| カンニング | 3 | 5.26 |
| 子鹿 | 3 | 5.30 |
| 手技 | 3 | 5.66 |
| 朝飯前 | 3 | 4.86 |
| 日替わり | 3 | 4.85 |
| 作 | 3 | 4.04 |
| ハンター | 3 | 3.70 |
| 空母 | 4 | 4.32 |
| 導入 | 4 | 4.30 |
| わい | 4 | 3.90 |
| 親切 | 4 | 4.00 |
| 万雷の拍手 | 4 | 5.32 |
| 真っ当 | 4 | 4.06 |
| 降ろし | 4 | 4.13 |
| あっ気 | 4 | 4.67 |
| 一勝 | 4 | 5.19 |
| 堪らん | 4 | 4.63 |
| 張り合う | 4 | 4.53 |
| 海面 | 4 | 4.09 |
| ロリ | 4 | 4.37 |
| 水仕事 | 4 | 5.76 |
| 一興 | 4 | 4.80 |
| 三割 | 4 | 4.38 |
| 薙刀 | 4 | 4.35 |
| アンズ | 4 | 4.68 |
| 精密 | 4 | 3.79 |
| 処じゃない | 4 | 4.62 |
| 梳かす | 4 | 5.01 |
| 号外 | 4 | 5.28 |
| びくっと | 4 | 4.58 |
| 当てはめる | 4 | 4.71 |
| ともすれば | 4 | 4.42 |
| 飼う | 4 | 3.95 |
| 路加 | 4 | 3.82 |
| ストーリー | 4 | 4.13 |
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