The Seventh Seal - S1.E19

With her powers partially sealed, Misa faces difficulties in finding those responsible for the murders occurring within the group of girls. But when she identifies the magic pattern being formed, she manages to get closer to the one responsible for all the cruelty.

(*Due to the themes represented in this arc, the series was allegedly canceled on TV Tokyo, the original broadcaster, following a mass murder crime involving teenagers that received significant media attention in Kobe at the time. Subsequent episodes were only aired on TV Osaka and its affiliates.)