If you watch it as a standalone drama series inspired by a novel not based on novel, it is brilliant.
But if you had already read the novel or watched the anime series, and then consider it being based on the novel, it is really bad. The plot seems as if season 2 will be final season with the battle between antagonist and protagonist clearly build up for climax.
But if you had already read the novel or watched the anime series, and then consider it being based on the novel, it is really bad. The plot seems as if season 2 will be final season with the battle between antagonist and protagonist clearly build up for climax.