The navigator for the Desire Grand Prix (DGP). She always carries a tablet-like device. She speaks in a polite, formal tone. She is the successor to the previous navigator, Mitsume. She generally addresses others with honorifics like -sama or -san. During the story, she was nearly turned into the second Goddess of Creation, but returned to her original self by passing her power to Ace.

The "Undefeated Man." His profession is a world-famous celebrity known as the "Star of the Stars of the Stars." He is Kamen Rider Geats. Although shot by Tsumuri, he did not disappear. While unexpected by his enemies, Ace was never truly human and had prepared himself to become a god. While Ace Ukiyo the human died, he was reincarnated and lived on as a deity. Due to a past wish, he was destined to reincarnate eternally. However, having fulfilled his wish to meet his mother, he chose to entrust that eternal life to the future and wishes of his friends. It is the fate of those who gain the power of creation to become mindless gods, but Ace resisted this, choosing to remain the individual "Ace Ukiyo." By making his own wish to "become the God of Creation," he became a true god whose powers could not be exploited by the malice of others. Later, responding to the wishes of Keiwa and the others, he joined the final battle against Regad Omega riding the Boostriker. He fought well in Magnum Boost Form and restored the transformation abilities of the three others.

He hates Kamen Riders because a close friend died due to the influence of the Desire Grand Prix, and he fights as Kamen Rider Buffa. He primarily uses the Zombie Raise Buckle to transform into Kamen Rider Buffa Zombie Form. He uses a chainsaw-like weapon called the Zombie Breaker. His tone is often rough and confrontational, but a clumsy kindness is hidden beneath. In the world Ace rebuilt at the end of the story, he fights as an ally. Before joining the DGP, he was a senior colleague at work who was admired by his juniors and liked by his bosses.

A man who keeps failing job interviews and struggles to find employment. He has a kind and compassionate personality, wishing for world peace in the Desire Grand Prix. As Kamen Rider Tycoon, he initially fought with hesitation to protect people. By the end of the story, he grew accustomed to battle and transformed to protect the world. He primarily uses the Ninja Raise Buckle. Tycoon's strongest form is Bujin Sword, transformed using the Bujin Sword Buckle. While in Bujin Sword form, he fights using a katana called Bujin.

A super-celebrity YouTuber. As she participated in the DGP, she found her resolve and uncovered various hidden truths about her existence.