In this world, there once was a figure called the Giant of Light. After completing his mission, he had gone back to his homeland. He had erased all memories relating to him, giving humans the peace they once had. The story is based on a world where the Giant of Light is now the past.
The high schooler, Shinjiro Hayata, notices that he has “special powers”. Unbelievable jumping skills, strength well over humans, and a body too powerfully built were just enough for him to realize he is not “normal”.
One day, he finds out that his father was once Ultraman. Shinjiro who has inherited those genes is one of the few who can wear the Ultra Suit.
“I will say this straight up – I want you to become Ultraman.”
Dalam dunia ini, terdapat jaguh yang bergelar Raksasa Cahaya. Selepas misinya terlaksana, dia kembali ke tanah air sendiri. Segala ingatan berkenaan dirinya terpadam, memberikan semula keamanan dikecapi oleh manusia. Cerita berkisar pada dunia di mana Raksasa Cahaya kini menjadi kisah silam.
Pelajar sekolah tinggi, Shinjiro Hayata, perasan bahawa sendiri “berkuasa istimewa”. Kemahiran melompat sukar dipercayai, kekuatan melangkaui tahap manusia, dan badan begitu sasa buatnya merasai dirinya “luar biasa”.
Satu hari, dia dapat tahu ayah sendiri pernah jadi seorang Ultraman dahulu. Shinjiro mewarisi gen-gen sebagai salah seorang daripada beberapa orang mampu memakai Sut Ultra.
“Saya berterus-terang – saya mahu awak menjadi Ultraman.”