Ultraman Nexus is a Japanese tokusatsu television series from the Ultra Series. It follows a mysterious giant hero, Nexus, who bonds with different human hosts to battle monstrous beings called Space Beasts. The story has a darker, more serialized tone than many earlier Ultra entries, focusing on sacrifice, trauma, and the struggle to protect humanity. It is known for its complex narrative, emotional depth, and connection to the broader Ultraman mythos.