I finished Zankyou No Terror last night and I have to say I really loved it. the music was amazing, slightly jazzy but not too much to affect the feel of the anime, I loved the art style and the dark outline it seemed to have like most thriller anime. The plot was slightly odd but nonetheless I really enjoyed it. The ending gave me the feels but in thriller animes it was guaranteed to happen but I was off guard when they where having fun. ;_;