
What comes to mind when i read this is this webtoon called Deep Blue Child.
It has a great narrative but many things you need to pick up in order to understand that character. That being said, its not like you're missing anything if you don't- just little things that some characters love or do or say that actually has a sileng impact on the story.
Also Purple Hyacinth (it's available on webtoon for free. This fits your description even more actually)

Oh and try Veil. More silent panels than dialogue which is so much more expressive. A personal favourite- heres the link
https://www.mangago.zone/read-manga/veil/
Can you people recommend me a manga that's more leaning towards "show, don't tell"? I don't exactly mean manga that don't have much dialogue, i love interactions between characters and all!
What i meant is that, instead of just endless unnecessary exposition, something "predifined" or in depth, i want something that makes me feel things out and makes me draw out the conclusions/resolutions by myself, i want to watch things unfold with my own eyes yk.