I''m not a fan of the music direction that gives this lighthearted mood in the beginning of the episode when you know from the last episode's cliffhanger there will be an ominous event. I would prefer a more dark vibe between innocent conversation that gives the audience a sense of tragedy between the sisters. Not to mention, it blatantly reveal the suspect after already giving a heavy hint. That said, I love how Naruhodo's cleverness was written by interacting by interacting with the people around him. It also took the time to stew on the grief and resolve between Mayoi and Naruhodo that made the beginning of their partnership that much significant.