Responses
Just wanted to clear things up Thank you so much for your wonderful analysis! I feel like highschool is the most logical/appropriate setting for the plot tbh. In a college setting it would be questionable to believe the initial childish love that set off the whole plot, and any younger is really disturbing. I started reading since I heard it ended recently, we've got one more volume left!

Yuri has been choosing Aono over and over and over again over herself and even her own life, like literally. She knew him less than a week and even Aono himself found that so odd. She unknowingly (but also willingly) let him bind himself to her like a parasite. It seems it’s time for her to choose, is it him or is it herself, just as it was the unfortunate choice Aono had to make with his god awful abusive mother. She had that weird dependence on Aono, similar to the dependence his mother had on him so she probably had to play that part this entire time, the only difference being that his mother was a broken woman who was extremely selfish and Yuri was entirely self sacrificial (maybe that was selfish in a way too? Aono didn’t want her to do that). Perhaps now that she has seen more value in herself, perhaps she now wants to live and experience new things, she has to kill Aono metaphorically and literally to get through this. She’s finally thinking about herself and breaking out of an abusive pattern, or at least has the capacity to. Just as Aono once had to do, and now she is Aono, and he is his mother. His end was tragic though, let’s see what happens here. Excellent story, I just wish they left out a lot of the weird sex stuff cause I don’t want to see that shit about middle schoolers.