Synopsis: Shirokuro Kitan

Ririko Benibana relocated to Kaminoshiro, hoping to unravel the mystery surrounding her father's unresolved death. Her father, a detective, frequently visited the town for personal reasons, but his colleagues were unaware of the nature of his investigation. Ririko was unsure where to start until she became fixated on the pitch-black clock tower that loomed over the town's center. However, when she tried to ask about it, people evaded her questions. After discussing the ominous landmark with her new friend, Maya Sonomachi, Ririko was summoned outside during lunch break by Maya, who was exhibiting bizarre behavior and holding a black and white checkered card. Maya suddenly attacked Ririko, but Shirou Otori, a distant classmate, intervened and restrained her. Despite the danger that Ririko faced, she refused to ignore Otori's possession of a sinister card, which he called "Malice." Although the cards had minor differences, they were significantly similar to the one that Ririko received from her father before he died. She was convinced that this was not just a coincidence.