夜がおわらない

Seren Kazami, a girl raised in Tanzania, possesses the unique ability to understand animals' emotions and returns to Japan alone due to personal circumstances. At her new middle school, she encounters Sei Nakatsukasa and Keiya Mashiba, two boys whose emotions she cannot read, sparking her curiosity. Seren learns from the Mystery Research Club about a chilling phenomenon involving "red-eyed humans" linked to a surge in student suicides and accidents. As she bonds with her cousin Saki and navigates school life, Seren senses a growing atmosphere of fear tied to these mysterious figures. Together with Keiya, she begins investigating the cause, uncovering unsettling connections that threaten those around her. (Unreviewed summary by Grok 3)