Ultraman Omega

Kosei Hoshimi, a young warehouse worker, stumbles upon a mysterious amnesiac man secretly devouring his yakisoba. When the man suddenly takes off, Kosei's pursuit lands him right in the middle of a kaiju attack tearing through the city! Witnessing Kosei's compassion for a girl in the shelter, the amnesiac resolves to shield the city from the kaiju, and a crimson light ignites within him!

The amnesiac man declared his name: Omega. Kosei brought him back to the warehouse, and they start living together. Though Omega's past remained a mystery, the two ventured into the forest, hoping to uncover the true nature of the kaiju reported on the news. It was within this forest that their path crossed with Ayumu Ichido, a biologist. Kosei introduced the amnesiac to Ayumu as Sorato. The three began working together to search for the kaiju.

Ayumu felt disappointed that Sorato's memory loss prevented him from providing clear answers about things she's been curious about. Sorato suddenly senses something and goes out. Kosei and Ayumu join him. The place they arrived at was the remote mountain where Sorato had awakened. Sorato and the others search for something to help him recover his memories, and there, Kosei unearths a mysterious stone. At that moment, dark clouds gather, and a kaiju enveloped in cold air appears from the sky. The kaiju's objective is also this stone! As Kosei is attacked by the kaiju and finds himself in a desperate situation, a blue kaiju wielding psychic powers emerges from within the stone!!

Saburo Oya, the owner of Taiyo Warehouse, comes to pay a visit on their day off. Saburo, Kosei and Sorato are about to head out fishing, but Ayumu contacts them about a kaiju. A clash of emotions leads to a fight between Sorato and Kosei... Amidst their conflicting feelings, Kosei's strong desire to help Sorato, who is struggling against an invisible kaiju, resonates with Rekiness!

Sorato heads to a quiet rural town, tasked with delivering a package Kosei forgot to send. There, he encounters Miko, a young girl who shares her life with a giant serpent that eats steel she affectionately calls "Mikoto," and her aunt, Sasako. As Sorato quickly becomes part of their lives, he uncovers a surprising secret hidden between Miko and Mikoto...!

A kaiju appeared at a construction site deep in the mountains. Soon after, it suddenly died, but the reason is unknown! Ayumu and her junior team member, Yuta, go to investigate in the mountains. Another kaiju of the same species appears there and chases them until they are completely lost... Then, the kaiju begins to advance toward the city with unstoppable determination. Where is it going, and why?