What attracted me from the first episode was the quality of everything, not only is the introduction done in a creative animation style, the quality of the shots throughout the episodes really stood out to me. Also the ghosts and special effects are seriously scary! Aside from that every episode seems to have a smaller story about a certain ghost in it, and all of these stories are interesting so far. I like both the lead characters and even the secondary lead character!
Though I've only watched 4 episodes so far I think I can already recommend this series!