Kotani's rhythm was upset by the introduction of Fujishima Masato as the new teacher of biology. Initially, Fujishima's admission frightened Kotani, but he eventually came to terms with it. However, when one of Kotani's former students reappeared and acted oddly toward him, things took a different turn. Fujishima became concerned when he couldn't find either of them and feared that Kotani might have been kidnapped. Was Fujishima able to intervene before it was too late and save Kotani?