
Oh man, this is probably the best thriller manga I've ever read. It's mistakenly labelled as a mystery, but it's apparent from the start who the culprit is and sensei uses that to build suspense. Every time the culprit is alone with a kid, including Satoru, I'm thinking "oh shit". So creepy. Thank you sensei for your ability to creep me out (not an easy feat by any means).

I see a lot of people don't understand Kurose as a character, so I thought I would take a crack at explaining what I think.
First, there is "weakness" as a relationship dynamic. There is probably a proper psychological term for this, but some people are attracted to weakness: I was one of them (it took me years to realize this), but am not anymore (people change). Another manga with this dynamic is Demian Syndrome (also a good manga imo). Kurose is likely attracted to Shirotani's weakness (mysophobia), hence what he said. However, this doesn't mean he ONLY likes Shirotani for his weakness. It's like physical attraction for sexual people: you experience it but it doesn't define your relationship with a person. You love and stay with someone for much more important reasons than their looks, but for many sexual people looks is what initially attracts you to a person.
Second, about Kurose being manipulative/exploitative. I don't think he is being manipulative or exploiting Shirotani. I do think he is challenging Shirotani's limits of comfort. Shirotani has been a willing participant in every interaction they've had. Even though he may be uncomfortable in those situations, he is pushing himself to overcome them. There is an "exposure therapy" dynamic going on here, as well. I believe this is what sensei is going for (it was more straightforward in the first volumes, but hasn't changed).
There are also elements of Sadomasochism involved. This somewhat ties in with the weakness dynamic, I believe. Kurose seems to not only be attracted to weakness, but is stimulated by it. He likes being relied upon, being in control and is turned on by Shirotani's discomfort and submission. I'm not going to get into BDSM dynamics, but as far as I can tell Kurose isn't abusing Shirotani or taking advantage of him. Shirotani doesn't understand what's going through Kurose's head and neither does the reader. I'm sure sensei will clarify things in future chapters and but Shirotani and confused readers' minds at ease.

I love this manga because it portrays a polyamorous relationship decently and doesn't try to pair off people just for the sake of making it a conventional relationship. A lot of the comments here are pretty ignorant: to call polyamory "messed up" is insensitive to those of us who are in relationships with more than one person. If you find it messed up for other reasons, fine: we all have our own tastes. I just hope people understand that life isn't a corny Disney movie, and relationships come in many flavours.

Yes. When I see people see that they feel 'sad' because it's a threesome instead of a pairing, I wonder if they realise how insulting it is. Especially when those people in the relationship realised that they are happy when they are together with them three in the end.
To the peeps who find this boring: it's just getting started. This manga is long. Anyone who has read sensei's Mirage of Blaze will be familiar with the pacing. But if long manga with a good plot isn't your thing, then move along.
Sorry was trying to do a thumbs up but did the down instead. But I agree with u. If u want sex go to another manga if u like slow torturing manga that is awesome then keep reading.
I love the long and slowly developing story, so many details and characters - and not just one long drawn-out power-up series of battles (I speak of certain manga that carry this out constantly - it gets tiring)