Yoru ga Kuru!  

夜が来る!

The moon had an unexpected blue coloration that was referred to as True Moon. Three years later, when True Moon shone brightly in its blue hue, a creature emerged before Ryo. Despite attempting to flee from it, Ryo eventually found himself cornered by the monster. As he resigned himself to his fate, Izumi appeared with red eyes and defeated the beast. She then vanished without a trace.