The plot is amazing. I thought "wow, here goes Souryo-sensei again." I have always had a thing for psychological stuff, so this was really interesting from start to finish. I really loved the scientific-babbles that Mine says whenever she's lost in herself. Heh.
However, I really felt like it was rushed somehow. I was hoping it would run for another 100 chapters before it ends... TO BE HONEST! I just had dreams about it... It kept haunting me even in my dreams...THAT HAS NEVER HAPPENED BEFORE!
From the moment I slept, I even said to myself, "haha, I wouldn't mind having nightmares about this story..." and what do you know, I dreamt about it and even woke up in the middle of the night and was still thinking about it. It left that much of an impression that even as I woke up this morning, I was still thinking of it and thought it was best to write down what the ideas were.
I was really sad about that ending... I was hoping Shuro and Mine were to have a happy ending too... But...life is cruel for the both of them, it would seem.
But I thought, "what would happen to the child now? Will it have ES powers just like he did?"
In my dreams and my thoughts, if Mine had a son she would most likely name it after Shuro's "Ryousuke." If it was female, she'd name her "Yuri," as that was one of the little girls she's come to be close with in the story, and she would most likely want for her to live on and be her daughter since she might have been guilty she wasn't able to save her.
On the other part... what if Tomoya's mother was pregnant too? (Since she was raped by Izaku in Shuro's body) You all probably never thought about it...but that was one of the ideas that kept me haunting me in my sleep last night.
If so, there's a possibility the child might have an ES power too. And for the woman, being traumatized with the death of her husband, or she might suddenly wonder she was pregnant if her husband (theoretically) haven't been touching her - and it will be the cause of how the new generation ES-child will grow up. If Mine's child were to have a happy life, Izaku's (Shuro's body) spawn might have a rocky childhood and would lead to yet ANOTHER ES problem for Sakaki and Mine. Not to mention if she happens to see the child and it might look exactly like Izaku... And the children were opposite gender, it might become a romance... YES, even if they are siblings. Incest...I'm not even fond of it (as I have siblings of my own, and would never dare touch the subject) but it is quite plausible they would be drawn to each other. Mine's child would most likely sympathize to Izaku's spawn, and things will go out of hand from there.
Anyways...that's how far my dreams/ideas have got me. /shrug.
It would be nice if my idea could become the sequel...but that's just my wishful thinking.
Anyways...in terms of plot, I'd give it a perfect 5. The ending kept bothering me to not give it a perfect score so a 4 & a-half/5. The art is exceptional...as it is seinen so it's prefect for the story. So I'm giving it 5 too, being that it's detailed the way it should be for this kind of plot.