@Kaarme - Do I need to hold your hand and explain to you what adoption is? Do I need to explain to you why an adult that rescues, supports and raises a CHILD is now that child's guardian/parental figure? Cuz, I really hope I don't and if by the grace of intellectual capacity you can comprehend that all on your own, it should be clear that what people are referring to is synonymous with a father x daughter fetish.
Now, hopefully, I don't need to walk you through this either; people are not saying this is going to be another Usagi Drop. people are just expressing their opinions that they DON'T want this to turn in to something
like Usagi Drop. Which, again, no one actually needs to read to understand the connotation is of a father x daughter "romance". And, by the way, since I'm sure I will need to explain this to you, based so far on your responses, he doesn't actually need to be her biologically dad. The point is the vibe and undertones of which it is trying to be, that of a father and daughter.
The icing on the cake is the fact she's like 11-13 and he's in his late 20's if not early 30's. This might surprise you, but people aren't all that into things
resembling pedophilia. And it seems like the only thing clear here is that you WANT her to not view him as a father... Remember? We're only
three chapters in. Derp a derp.
I really don't care that the author fro Usagi Drop trolled their readers and only openly opted to spin a "romance" late into the story after everyone had been convinced it was a slice of life about a newly adoptive father figure to a weird and innocent little girl.
TL;DR - Seems clear to me you just really want this manga to be another roricon and daddo figure "romance". Oopsies, lol.