"Ultraman: The First" is a manga series that reimagines the classic Ultraman franchise, blending science fiction, action, and drama. The narrative centers on Shin Hayata, a member of the Science Special Search Party (SSSP), an organization dedicated to investigating and combating extraterrestrial threats. After a fateful encounter with an alien being known as Bemular, Hayata is critically injured. To save his life, he merges with an Ultra-being from Nebula M78, a benevolent alien entity. This fusion grants Hayata the ability to transform into Ultraman, a giant, silver-and-red armored hero with immense strength and energy-based powers.

The story unfolds as Hayata, now sharing his consciousness with Ultraman, battles a series of kaiju (monsters) and alien invaders threatening Earth. Each mission pits Ultraman against increasingly formidable foes, ranging from colossal beasts to cunning extraterrestrial adversaries. The SSSP plays a crucial role in supporting Ultraman, providing scientific expertise and tactical assistance to neutralize threats. Key members of the SSSP, such as Captain Muramatsu and Akiko Fuji, contribute to the team’s efforts, often uncovering critical information about the origins and weaknesses of the enemies they face.

As the series progresses, the narrative explores the duality of Hayata’s existence, balancing his human responsibilities with his role as Ultraman. The emotional and psychological toll of this dual identity is a recurring theme, as Hayata struggles to maintain his relationships and protect humanity without revealing his secret. The manga also delves into the origins of the Ultra-beings, revealing their mission to safeguard the universe and their connection to Earth’s history.

The artwork and pacing emphasize high-stakes battles and dramatic confrontations, with detailed depictions of Ultraman’s iconic abilities, such as the Specium Ray and Ultra Slash. The series maintains a balance between episodic monster-of-the-week encounters and an overarching plotline involving the mysterious forces behind the kaiju invasions. By the conclusion, "Ultraman: The First" provides a fresh yet faithful adaptation of the Ultraman mythos, appealing to both longtime fans and newcomers to the franchise.