It builds up a story and drops it with consequences that might turn out satisfying to watch. It contains layers of dark stories and disturbing action done mostly everyone. If you're into things being out of the normal range of human behaviour, this is the anime for you. Bonus points if you like yuri or lolis.
What I found this anime being fun is mostly from the protagonists' ability to do evil things. A cute girl who has a dark side waiting to be discovered by the viewer; all to protect her loved one with anything, but with responsibility and sanity of her own to try to avoid trouble. It builds up with her punishing "terrible" people one after another, even if they used to be friends or coworkers she's met with her "normal" daily life outside, and dropping it with even darker and darker actions as the anime goes on. I seem to be obsessed with the idea that things get twisted just for maintaining the protagonist's relationship.
10/10 because most parts of it are fun, interesting, and gratifying to watch. The music fits the story and the art style is sweet to the eye. Most importantly, they work together to make the atmosphere fit the storytelling beautifully.
