Ouroboros: Anomalous Calamity

On Friday, February 14, the day suddenly began to repeat, with the population starting to go insane and die out. Caught in the middle of this cycle, Makoto Yamakawa's normal daily life goes down the drain. For an unknown reason, her and a few others are aware of this cycle, convincing her to aid in a journey to find and eliminate the cause of this time-looping anomaly.