Zero and Taiga run off to the neighboring set to play DGP!
The timeline falls in the gap between Ultraman Galaxy Fight: The Destined Crossroad and the Blazar TV series, on the assumption that the Land of Light and the Kingdom are both forced to cease hostilities and recuperate.
Time flows at different rates across the multiverse. The lifespan issue is mentioned, and the Taiga universe's timeline has already reached the afterword in the Ultra Complete Works appendix.
The title comes from Qiaojie's song, "A Blessing for the Future": "Such are addition, subtraction, multiplication, and division, beneath the vast heavens."
Theme: When humanity's stars shine bright.
