Following an invasion by unidentified plants from outer space, Rita finds herself caught in a time loop, compelled to relive the same day repeatedly. With every iteration, she gains knowledge. She battles. Her accumulated memories and experiences hone her abilities, transforming her into a formidable warrior. However, the unending cycle of death and isolation starts to take its toll. Then, she encounters Keiji. "I've been repeating this day too," he says. Two lost souls, confined in an endless war. Could their meeting alter fate?