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.
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.
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?!
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!