Aliens have been emigrating to Earth secretly, but only a handful knows about this truth. Living in such a society, the main character Hiroyuki Kudo begins working at a private security organization E.G.I.S. (Enterprise of Guard and Investigation Services). The organization takes care of cases related with aliens, and Hiroyuki works day and night to protect peace. However, there lies a huge secret in him, which he himself is not aware of. He carries Ultraman Taiga’s “particle of light”. The new story begins as Taiga’s powers revive from Hiroyuki’s body!

Devastated at the death of her four-year-old daughter, a grieving middle school teacher is horrified to discover that her students aren't as innocent as she thinks.

The time of the New Generation Heroes is drawing to a close. Hiroyuki is being targeted by a dark power, forcing the other Ultra Heroes, from Ginga to R/B to appear and help the Tri-Squad battle these evil forces. But among them is Taiga's father? What has happened to Ultraman Taro?!

Ai is a student at an all-girls' art high school. She is known to be extremely gifted in the arts, but the adults around her try to use her and her classmates are jealous of her. Ai suffers because of her situation, but doesn't have anywhere to escape. Her daily life becomes like a war and she begins to collapse.

Teacher Akira Suzuki breaks away from long-held customs and norms at his school. He tries hard to have the ideal classroom by using his own "Suzuki method". The new semester begins. His homeroom 2-A class is about to have a student council election and preparations for a school festival. A man then takes a female student hostage...

Nobuto, a dedicated boxer, can't seem to win a match, while his friend Kazuki is becoming a rising star and may win the championship. Meanwhile, Kazuki is engaged to Chika, Nobuto's first love.

Horigai spends her boring days waiting to graduate from college. As she hangs out with friends, she begins to realize the violence and sorrow behind their ordinary lives.

Oba Kamon runs a cafe in the Nikko city. One day, a mysterious woman appears before him and leaves behind a message, “In the ring where the sun shines, there it is.” Kamon begins to search for it's meaning.