Some elements of this book's setting are based on the Ultraman Tiga TV series and its side stories; everything else is fan-created.
In this book, Tiga's size depends solely on his ancient genes (the light element).
If you think Tiga's size should depend on his state of mind, consider how Daigo was feeling from the start of the Ultraman Tiga TV series.
After defeating Alien Empera, who had come from another dimensional universe, Ultraman Tiga left this world and headed for other worlds in need of him...
However, the crisis facing this world was far from over!
As darkness consumed the people and despair enveloped the Earth...
On one side stood a shattered lighthouse (light).
On the other towered a black tower (darkness).
Alone, courage made its final choice!
