NOTE: Watched season 1.
Series in one sentence:
Someone with a lame haircut and a boring personality is the main character of an anime.
Series in more sentences:
A boy gets attacked by a demonic human, called a ghoul, but barely survives it thanks to a planned attack aimed for said ghoul. Both are taken to the hospital, where he gets few of her organs implanted for an experiment, and wakes up as a half-ghoul, experiencing all the problems that come with it.
I found this interesting. It not only showed how humans experience these creatures, but also the struggles the ghouls have to go through in order not be a nuisance to the human race. You'd expect monsters to just be monsters, but they have real concerns.
A less exciting part of the series was the friendship between the main character and the one ghoul girl he supposedly hangs around with all the time. The show implies they've spent alot of time together, but it didn't look that tight to me. He treats her nicely, but I don't see the same level of respect returned to him. They are far from superbest friends, yet the scenes and dialogue they show concerning these characters pretend they "sort of are". It's hard to explain.
Anyway, I'm not sure what else to say. I've not yet watched the second season, it wasn't out yet back when I watched this, but the first season indeed feels like an introduction to something greater. I'm eager to watch the rest someday.