Osamu is the protagonist of the story, and he always has a sister complex. He has taken care of his little sister, Rio, from the moment she was born, as well as his other sister, Mio, since she joined his family from his father’s remarriage. Every day he was on cloud nine being together with his two younger sisters. Finally came the day when they started attending the nearby school that he also went to. When he saw them in their school uniforms for the first time, his heart started beating faster as he gazed upon their slightly matured figures. Could it be love? Yes, he had begun to have a (sexual) affection for them.
Japanese study overview
Onii-chan Daisuki! is a Japanese visual novel of 480,702 characters, with 8,290 unique words and 1,508 different kanji. Its difficulty rating on Jiten is beginner, 0.9 out of 5. The full vocabulary list ranks all 8,290 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Subdecks
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Vocabulary highlights
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.
- 里桜Rio×4,126
- 俺I×3,146
- 美桜Mio×2,171
- 夕凪Yūna×1,618
- お兄ちゃん(one's) older brother×1,032
- 言うto say×928
- 私I×511
- 顔face×467
- 妹younger sister×464
- 気持ちいいpleasant (of a sensation)×454
- 思うto think×451
- 精液semen×430
- 膣襞pussy lips×47
- スク水school swimsuit×44
- 小陰唇labia minora×29
- 手コキhand job×27
- ガマン汁pre-ejaculate×23
- 抽挿in and out movement (esp. during intercourse)×23
- 絞りとるto exploit×17
- 恥丘mons pubis×14