The story comes across as creepy because nothing has been done to "legitimize" Mimika's attraction to Yuzumori. Yuzumori doesn't show any signs of reciprocating Mimika's feelings. In fact, she seems supremely unaware that those feelings even exist, as a middle school child would be.
That brings me to the second point, Yuzumori is a surprisingly accurate portrayal of a young girl despite being the love interest in a lolicon story. A lot of readers will be able to relate her to young children they know in real life, which makes them much less reticent to put her in sexual or even romantic contexts.
Finally, most of the story focuses on Mimika and her attraction to a small child, rather than on the child herself. You get an unfiltered view into Mimika's fixations around Yuzumori's character, and due to the aforementioned lack of reciprocation and Yuzumori's authenticity of childishness, it comes across as very stalker-ish, borderline predatory behavior.
The best part: I think deep down, Mimika has always been aware of her feelings and of how inappropriate they are. There's a distinct sense of guilt that's present here that is conveniently left out of most lolicon stories. I get the feeling that she's not as dense as she let on earlier in the story, being willfully oblivious to the concept of love. She was simply doing mental gymnastics to avoid confronting her feelings. This is why she's taken aback when Shi-Chan rolls up, says "Fuck that noise," instantly spells out those feelings and shoves Mimika's face in it (which in turn is why Shi-Chan is awesome).
TL;DR Nabokov would be proud.
Damn son
I still find it interesting and enjoy reading it tho, but this was an interesting analysis. I'm tired and your post was definitely too long to read but I'm glad I read it
Man I just wanna know what happens. I feel like I've often seen the lolicon tag in hentai settings, but I don't really recall seeing with like... actual plot.
I read literally every yuri work that is posted here that isn't a doujin of a series I don't follow regardless of whether I like it or not. My continuing to follow this has much less to do with secretly not finding it deeply uncomfortable and much more to do with me having no standards.
Same.
Though I feel a bit awks about reading this one, because as bad/creepy as it sounds, I do want to read it. I don't have a specific interest for the lolicon tag but I don't hate it either, kinda just a neutral feeling, some sort of acceptance that it's there and not being against reading some, unless it's some sort of obscene low key scary porn thing. I guess my standards are like, as long as it doesn't scare me, I'll probably be okay with reading it.
Hm, I guess it's just awks cus I feel like it looks bad.