Since the description doesn't really explain anything, I will here. This will only cover the set up within the first 3 chapters so don't worry about extreme spoilers. The premise is that the porter (Ain) for the healer's party was inexplicably kicked out right before reaching the demon lord's castle. No kind of continuous physical ab*se or extreme exploitation was stated though (remember this because this will be important later). In a state of depression, he happens across a basket of 4 elf babies (all female) left in front of a monastery. Feeling a deep sense of empathy towards being abandoned, he adopts them and raises them as his own daughters. Turns out, in this setting elves grow at an absurdly fast rate compared to humans so within 4 years, they grow into beautifully developed adult women. The story starts rolling when on a rainy night, a member of Ain's old party (Rihanna) appears on his doorstep.

Before delving into my criticisms of the story, it's necessary to explain why there is a yandere tag. Despite the 4 girls physically and mentally developing into adults within 4 years, they still lack life experience or any kind of wisdom so they retain the morality of a toddler. As elves, they grow to be significantly powerful but that combined with their non-existent moral compass turn them into psychopaths who can't be checked. Of course, their adoptive father Ain is oblivious to this.

Starting off with the positives, Ain is an extremely compelling and likable protagonist. He doesn't fall into the common narrative traps of being a doormat without agency, or a mu*der hobo with no desires besides revenge. He's reflective, active, and believable. When Ain does something, it makes complete sense for the character and for the story. I also like the way his relationship unfolds with Rihanna. Their history makes their interactions strained but the evolution of their relationship is true to their characters and compelling. Lastly, the yandere daughters are a great source of suspense. Their presence adds an extra layer to any interaction. Imagine you're in a cave with a hibernating bear and you need to avoid being too loud else you risk the bear waking up and mauling you. That's the kind of tension they add to a scene because even when they aren't in focus, you don't know when they're listening or what they'll do.

As for the negatives, I'll start with what I think is the biggest one. The yandere element of the story is way overdone. The elves that Ain adopts end up being possibly the most unpleasant part of the entire story. Once it is revealed that they are yandere, the author doesn't hold back in showing them being malicious. They have no problem torturing, killing, maiming or other despicable acts. I get this comes with the territory of yandere but the story itself never really stops and properly address how messed up the daughters really are. One great example is when they openly discuss throwing Rihanna into a cave filled with goblins where she will be continuously r*ped and imp**gnated until the goblins decide to just vivisect her. And then after all that, the author will then try to endear you to them like you didn't read them planning to commit a crime against humanity. Remember earlier when I said that Ain's former party didn't outright ab*se or exploit him? Ain's daughters are so malicious that you can't root for them but the former party isn't evil enough for you to root against them. This leaves you in a zone where all your left with is tonal dissonance.

The second issue I have with the story is the eroticism. I won't call it romance because it isn't even romantic. The nature of the elves love for Ain isn't purely familial, but partially carnal too. There is no explanation as to why. Maybe because they grew up so quickly, their budding physical desires got mixed with the familial love for Ain resulting in some pe*verted attraction. With that alone, I've put more effort into characterizing them then the author has. The author put a little effort into giving them unique personalities but they all have the exact same desires, goals, and mindset. This all contributes to the broader issue of them being plot devices instead of characters. It usually wouldn't be such an issue but since they are such a driving force behind the plot, it is much more pronounced. On top of that, Ain himself expresses attraction towards the elves and is just repressing it. Because Ain is a real character, that was explained though. Since they developed so quickly, Ain didn't have the time to emotionally register them as his children before they grew up. It doesn't stop it from being weird and uncomfortable. Usually I could write it off but both Ain and the story itself keep reminding us that they are his daughters and 4 years old. Why was this included? This could have been written out entirely and nothing valuable would be lost.

Overall, the story shows promise but the unsavory elements were so extreme that I couldn't stomach it any longer.