Ultraman R/B

During the 15 year-anniversary of their mother's disappearance, Minato siblings Katsumi and Isami were rescued by the R/B Gyros from Grigio Bone's attack, transforming them into Ultramen Rosso and Blu.

While younger brother Isami is ecstatic about his new powers, elder brother Katsumi on the other hand is in fear of this great power.

The three siblings visit President Makoto Aizen of Aizentech in Ayase city and experience advanced technology.

Katsumi is a well-known pitcher in his high school; he turns down the offer to play professionally; he sets up a retirement match for his sandlot baseball team's head coach; but his injuries from previous battles affect his pitching.

Yuha Ninomiya continues to fail and injure herself with her wings invented in college; Nagisa Isami gets involved with his classmate's reckless challenge and both aim high for the sky, until storm-producing monster Guebasser appears.

Kaoru Komaki, an ex-cop who Katsumi and Isami were very fond of as children, is back; she is captured by Mecha Gomora.

Isami can't transform into Ultraman Blu; thinking of how he could have had his childhood benefactor killed during the recent battle, Isami is stricken with horror.

The Ultraman brothers, Rosso and Blu, are praised by the citizens as protectors of Ayase city; city's superstar, Makoto Aizen, refuses to forgive them; he invites the brothers and sets his plan in motion.

Katsumi Minato and Isami Minato are defeated completely by Ultraman Orb Dark.

Minato goes out on a picnic with his family; taking a break from the battles, brothers Katsumi and Isami enjoy a rare day off with their family.

A true hero appears before the people in despair. His name is Ultraman Orb Dark Noir Black Schwarz. Besides that, Horoboros returns with an evolved power. How did it happen?

Makoto Aizen is in a big hurry as monster Ouroboros is uncontrolled.

Sister Asahi presses Katsumi and Isami about the secret; the brothers share memories of intense battles, their encounter with R/B Gyro and the crises they overcame, highlighting their growth through these challenges.

Asahi Minato meets Saki Mitsurugi; after Saki suddenly disappears as usual, Asahi finds that there are two R/B crystals in front of her; when the brothers see this, they start arguing again due to their differences of opinion.

Defeated by enemy Grigio King, brothers Ultraman Katsumi and Isami fight even harder, leading them to be bombed dreadfully by the Bombing Bone Monster.

Asahi left home; she made the decision because she could not find evidence supporting that she is a part of the Minato family.

On Halloween, alien Dada can't find guests to attend a party and Asahi can't find a place to hold a party; when the two meet, they plan to hold a party together, until Dada finds out that Asahi is the sister of the two Ultraman.

Alien Mefilas, the director of space channel NPTV, is looking for a solution to save the low ratings.

Asahi was captured into the body of Space Robot King Joe; her brothers, Katsumi and Isami, met Saki Mitsurugi during the search for their sister.

After Gyros is taken away from the Ultraman brothers by Saki Mitsurugi, the brothers learn about Saki's past from their sister, Asahi.

The battle between the brothers Ultraman and the monster transformed by Saki Mitsurugi ends in a draw, with both of them injured; Katsumi tries to convince Saki to put their powers together and save Earth, but Saki shows no interest in that idea.

The brother Ultramans' mother finally came back from another dimension; while Ushio was filled with joy, the brothers felt something strange.

Reugosite threatens Earth's destruction. Mio and her sons trap him in a Crystal, but Saki interferes. As she transforms into Grigio Regina, the Ultra Brothers vow to save both her and the planet.

Leukocyte finally shows its real powers, destroying the city; Saki Mitsurugi transforms into Grigio Regina and fights with Leukocyte.

Saki loses her life; Ultraman Rosso and Blu fight back in anger, but are forced to turn back to human; Mio decides to sacrifice herself in order to seal Leugocyte again in the alternate dimension.