Owaranai Fuyu, Kowareta Yume no Kuni

"The loop won’t end until someone is killed."

A long-standing amusement park, Sunny Park, is the subject of an eerie urban legend: "The man-eating amusement park, where those who enter disappear one by one."

Despite the rumors, Ryuzaki Kashio visits Sunny Park with her high school friends, expecting nothing more than a fun day of rides and attractions. But as the day draws to a close without incident, one of her friends, Koneri Nana, suddenly leads her to a secluded area—where she stabs her with a knife. As Kashio lies dying, Nana pleads with her:

"Please… save Asebi-chan."

The next moment, Kashio wakes up—only to find that time has rewound to the morning of their arrival at Sunny Park...