- Alternative Character Interpretation: Some readers have noted that Rin developing feelings for her adoptive father basically out of nowhere to the point of cutting out all possible love interests might be the sign of something darker going on.
- Broken Base: Towards the ending and the revelation that Rin and Daikichi aren't blood-related and get married. Some took it alright while others took it less than well.
- Ending Aversion: Is arguably one of the most hated manga endings (even in Japan which normally doesn't mind this stuff) of all time mostly due to becoming another generic incest story (albeit not little sisters this time) at the last minute.
- Fanon Discontinuity: A good chunk of fans insist that the post-timeskip half of the manga never happened. Apparently, the makers of the anime adaptation themselves agreed, since said adaptation didn't even touch that material. A live-action movie similarly did not touch any of the post-timeskip material.
- Fan-Preferred Couple: Daikichi/Kouki's mother. Kouki/Rin. The anime, which cuts away the second half of the series, plays this up, in part because almost nobody liked Daikichi/Rin.
- Hollywood Homely: Daikichi. There are several references in the manga and anime to him not only being shy and awkward around women but not all that physically attractive either, even though he doesn't look that bad.
- It Was His Sled: Rin and Daikichi ending up together has been cited as one of the most poorly hidden manga ending spoilers. It's not uncommon for the series to basically be referred to as "That manga where a man raises a little girl then ends up dating her 10 years later".
- Moe: Rin-chan. So very much
- No Yay: Rin and Daikichi after the 10-year time skip. Some people took it less well than others.
- Overshadowed by Controversy: Almost every discussion of the manga version will lead to talking about the ending, and usually in a negative manner. It's to a point that the term "Usagi Dropped" is born to refer and warn people in case another series ended the same way as Bunny Drop did.
- Shocking Swerve:
- The original manga's infamous post-time skip shift to a completely different genre.
- And also the revelation that the two main characters aren't actually blood related, done to open up a romantic relationship between the two.
- The post-Time Skip ending for some.
- To many, the idea of Rin and Daikichi having a child together
- Strangled by the Red String: Rin and Daikichi's relationship switching from familial to romantic seemed to come out of nowhere for most readers.
- They Changed It, Now It Sucks!: A popular reaction to the time skip Genre Shift.
- They Wasted a Perfectly Good Plot:
- The timeskip could have been a good way to show a single father's challenges with raising a pubescent daughter, along with expanding on Rin's bond with Daikichi at a more mature level.
- Some feel that a teenage girl developing feelings for her adoptive father and how both of them deal with it might actually have been quite an interesting plot if it was handled... differently.
- Values Dissonance:
- When Haruko runs away, the end of the episode/chapter has her deciding to just bear her unhappy marriage and relationship with her inlaws. She is not encouraged to fight for her own happiness despite the obstacles as the message of an American show might be. Deconstructed after the Time Skip, when Reina casually mentions that her parents separated at some point, suggesting that it wasn't the right path for Haruko.
- On a related note, the scene when Daikichi's sister expresses concern about her fiance's desire to start a family immediately runs into some minor Values Dissonance. Daikichi does give her good advice (of the "talk to your husband, it's no use talking to me!" variety), but largely dismisses her concerns, deciding that the "leisure activities" his sister wants to keep are expendable — you have plenty of time to yourself at work, right? While very upbeat on one level, suggesting that spending all of your time at work or with your children is not automatically a huge sacrifice, a more Western audience would probably take her concerns more seriously and agree that someone who wanted to keep a free-wheeling lifestyle isn't yet cut out for motherhood — and it's unfair for her fiance to expect her to get pregnant, give birth, rearrange her lifestyle and cope. Of course, the fact that she's a bit of a Jerkass loses her sympathy points...and why is she marrying this guy if they've already got a massive difference of opinion on such a major issue?
- It's perfectly acceptable for six year Rin and Kouki to walk to and from school alone. Depending on where you're from letting a child that young out alone isn't socially acceptable and is considered dangerous. It does help that the two of them are taught about Stranger Danger and told what to do if they're approached by someone they don't know.
YMMV / Bunny Drop