
Well they never thought of each other as siblings in the first place. Im pretty sure he knows she's not his real sister from the first few chapters, and the mc thinks of him as a child she needs to help. So I don't know where this sibling dynamic that you are mentioning comes from. If anything they seem more like childhood friends, but no one complains about those.
And your entire comment makes no sense you write "why are yall so OPPOSED with them entertaining a romantic relationship", then you call it "weird". You support it in the first half of the sentence then bash on it the next. Choose one or the other goddammit.

Maybe it's because I know who the actual ML is and I've read these tropes countless times that it's easy for me to tell, but they all follow a very similar equation. 9/10 times, if there is an emphasis that they are "not blood related siblings" in a romance novel (esp Korean, which a lot of these Manhwa's are adapted from) then 9/10 times that often leads to either being the actual ML or having some type of romance or one sided love with the FL. The authors don't try to heavily emphasis those details if it's not going to be used later on especially in a romance novel. Also with your argument, I could also say the same as "ya'll love to invalidate the "siblings" to lovers trope", there will always be people on both sides of the argument.

Sorry it was an auto correct I’m meant obsessed, Yh they both know they aren’t related my blood but they interact and treat each other like how siblings would I just think it’s weird because she’s literally five and it’s going to take like 90 chapters before she even turns 14 soo like why would u build up so such a family dynamic relationship to make him her love interest?

I read this type of genre all the time so I know what your talking about but even from the title it seems it’s supposed to be a very family oriented romance I just don’t get why people are mad at people who don’t want them together like it’s not unreasonable to not want them together we have stories like Suddenly Became a Princess One Day Which just focuses on a dad and daughter rebuilding their relationship

That's true, but there's tons of comments bashing both sides. I'm not mad that people find it uncomfortable, it's understandable. And I'm all for family oriented manhwas, but I saw too many signs in this one leading towards a conclusion that it wasn't going to be the case. But I understand the feeling, I think the only family focused plot that surprised/disappointed me a bit was after reading a spoiler about the "twins siblings" lmao.

I only saw the comments telling people to drop the manga because they liked the siblings dynamic to me it was as unnecessarily hostile that’s why I commented I didn’t really see the signs until I went back to read the summary as well as ch 0. I’m enjoying the story so far I’ll keep reading it and so if I can really stomach him being the Ml because one I think he’s a great brother and for series like this I tend to get second male syndrome because for some reason the ml always has to be a Jack ass but pls if u have any siblings dynamic stories to recommend pls share.

highly recommend this one, it's adorable
http://www.mangago.zone/read-manga/yuzuki_san_chi_no_yon_kyoudai/
but here's a list of wholesome family content as well
http://www.mangago.zone/home/mangalist/578128/?filter=&page=1

Why Yurik, tho ? Cant they also have a cute sibling dynamic too? They're basically in the same situation as Dietrich and Anisa.Like they're literally children and we dont exactly know how the story will advance anyway. I always see someone complain in those types of series that they prefer that they go in a more sibling relationship but when it actually goes that route people complain that they want them be romantically involved, really annoying. Also isn't to soon to even see them in any light, its literally the beginning of the story and they're literally children, yall be very creepy tbh

My issue if the author wants to make them romantically involved in the future they should use a different approach in the way the relationship is built like I read a series very similar to this and I dropped it once the older brother started to express sexual feeling towards his adopted sister that he had know since five, I just personally think it’s weird and a bit problematic.
Why are y’all so opposed with them entertaining a romantic relationship it’s weird and that fact y’all’s reason is “they aren’t blood related” is even weirder YALL love to invalidate adopted sibling dynamic. And just because he’s on the cover doesn’t make it her love interest the yuri boy could be her love interest.