The MC was 20 years old in her previous life. She transmigrated into the 8-year-old little sister of a FML in a reverse harem novel and subsequently... her whole intellectual capabilities diminished?
This isn't a mere act that she puts on so the people around her won't get suspicious of an abrupt change in behavior. Even her thoughts sound like they come from a 4 year old. Not 8, but 4. I have a brother the same age and he doesn't act like that. Trust me, he ain't a tomboy, he used to love playing with my dolls and he'd occasionally throw hissy-fits but that was when he was, like, 4 years old. If he doesn't like something now, or can't have something, he deals with it and moves on.
The MC constantly thinks about sweets, wants sweets, complains about sweets, etc. If she doesn't get her sweets, her temper worsens. She bullies literal children because they annoy her (well hey, they're children. She is 20 years older than them. A year older than the legal drinking age in Korea. Again, this isn't a gimick, she thinks and acts like a child unironically.
I found it hilarious when she thought that one of the children needed to grow up when she herself needs to do just that. She acts like a baby and still humors herself as an adult.
I cannot find any of this cute when the MC is four years older than me.

It seems like she was twenty years when she isekai-d into the FL's little sister. I get her pretending to act like a child to keep the ML's away from her sister, but that's not all she does. This 20 years old female stuck in an 8 years old child continuously throws tantrums for not being able to eat sweets 24-7. She says 'I hate you' to her older sister, just because she told her to not eat more than 2 tarts. It's ridiculous when she was just feeling bad about taking over the FL's little sister body...but turns around and says, 'I hate you'. Is that supposed to be cute? If that wasn't all, she teases and gets angry at the first real 8 years old boy she meets since he called her ugly and eats one of her tarts...wow. I'm sorry, but this isn't cute for me. It might have been if our FL was actually really 8 years old instead of 20. I'm dropping this only after reading 6 chapters, since I feel like she will just keep frustrating me if I continue.

... Last updated on May 27th, 2022, 1:24am

The art is super pretty and not only are there three handsome male leads, there are three adorable little boys too! Not to mention how pretty the main character and her sister look.

And then there's how this manga is tagged with "food lure" hahaha didn't even know there was such a tag but yeah it sure does revolve around desserts and as a fan of desserts looking at all those is great too.

The whole story so far is just the main character teasing literally everyone lol and it's really cute and funny but after 12 chapters I'm ready for something else to happen so here's hoping.

Another complaint might be how like, the sister's only gonna end up with one of the guys so I feel real bad for the other two, especially when all they do in the manga is visit and hang out around her... they're not even really friends with each other they're all just together for the sister. Honestly I also feel that way for the three kiddos too lol, like I feel they could be friends with each other but unfortunately all we're shown is each kid with the main character.

Update 1 (ch. 27):
As with most romance isekai the FL’s past life maturity has absolutely nothing to do with her isekai maturity, so I just treat the FL as some kind of unrealistic precocious little kid instead and that suspension of belief is fine by me. The biggest conflict in the story so far (ch. 27) is her massive amount of guilt for not being the “real” sister and hiding that from her sister. Tbh it’s pretty annoying, like where is this sudden bit of adult empathy coming from when you’re otherwise a typical selfish five year old. Then again, the guilt is really more of her own insecurity than feeling bad for anyone else and all she does is sulk over it (and make her loved ones concerned) lol so really I guess this too is just precocious five year old behavior.

Between the man-candy and the actual candy and the beautiful matching sister outfits this is pretty much all fluff though and it's overall pretty great.

Update 2 (ch. 39):
Okay lowering this to a 7. Season two art isn't as great sometimes, and the whole "is my sister going to find out I'm not me" guilt trip is *really* getting old when she's otherwise acting like a five year old when she's supposed to be 8 and also supposed to be in her 20s. Also, all these other eight year olds acting like men in love is just kind of weird. It'd be hot if a 16+ year old did it, but at eight I'm just like, what's developmentally up with you? That Lili's just messing with all of them that feel this way is also a little bleh.

Even her trying to "protect" her sister is getting old because now

... Last updated on September 7th, 2022, 5:12pm