Rankeo manga № 646
ONIMAI: I'm Now Your Sister!
2 parts
7.57/ 10 · vote-weighted across the whole series
Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out! (Source: Kodansha USA) Note: Includes 57 extra chapters.
Why this rank?
The series score blends every entry below, weighted by vote volume — see the full methodology. Each entry's page breaks its own score down per source.
| Entry | Score | Sources | Votes (weight) |
|---|---|---|---|
| ONIMAI: I'm Now Your Sister! | 7.59 | 3 | 23,974 |
| Onii-chan wa Oshimai!: Koushiki Anthology Comic | 7.22 | 2 | 1,785 |
Parts, ranked
Every entry of this series by aggregate score — the sub-ranking inside the ranking.
