That is Ultraman Dyna's human form, Shin Asuka.
After Tiga disappeared, the second Ultraman to appear on Earth was Shin Asuka, who encountered a light in space and transformed into a miraculous warrior.
With the help of the Victory Team, finding someone named "Shin Asuka" is not difficult, especially since his father Asuka Ichiban disappeared into a mysterious light during a test flight.
From this perspective, Asuka Ichiban was actually the first human form of Ultraman Dyna, and in the Dyna TV series, there is an alien who wants to challenge Dyna.
This proves that during Tiga's era, Dyna had already appeared, only active in the universe and not having come to Earth yet. Only upon sensing his child's danger did that light transcend time and space.
