There are so many problems with this novel that I don't know where to start. I'm sitting here trying to organize thoughts to explain why I'm rating this a '2', but there's so much. Poor pacing, poor plotting, implausible situations, weak characterizations, sketchy motives, illogical reasoning, many more.
The biggest? Its horribly outdated message: "it's good to fall in love with your emotional abuser because deep inside he loves you, really."
The relationship between Shina and Sasakawa is just so sad and pathetic. Sasakawa is the biggest problem of this novel. Not likeable, very selfish, inconsiderate, and very immature. The kind that you'd warn your friends away from. You know, the type that would would mess with your head into believing you can't live without him because you NEED him. Or so he likes to have you believing. It's just not romantic. It's not love. It's the worst kind of emotional manipulation.
The best and only well-written part of the story is Shina's time with a teacher and his sweet pregnant wife. I finally liked and sympathized with Shina through this couple, but when that segment ended, the story went downhill.
I told my sister that I'll buy all books she wants for a year if she'd promise me not to read this book. She's old enough to read boys love novels, but young enough to be influenced. I don't want her to read Immoral Darkness until she's old enough to recognize that it's books like this that gives BL a bad name.