A newly moved little girl named Sakura befriends Pigmon, a small monster that had been dubbed as a ghost by several villagers and had played with children over the past years.
Wataru grows jealous when his childhood crush tends to hang out with Hayato. During his rugby match, Mu appears and searching for something in the city, accidentally causes damages and summon Red King due to its connection to the Dark Thunder Energy.
Daichi's Gomora has finally brought to life in Xio's experiment but as all test on Gomora has passed, the Dark Thunder Energy mutated Gomora into EX Gomora, sending it on a rampaging spree.
Several Bugbuzun Broods were detected by Xio officers as they rushed into the scene and eliminate the monsters. When one of them was about to attack a civilian and a weakened Sayuri, she found herself transformed into Ultraman Nexus and rescue the civilian before saving her family in Canada from ...