Ultraman: Monsters Descend, and I Get the Galaxy Spark from the Start

Bai Yueye was an utterly ordinary sophomore, until one morning he inexplicably got his hands on the legendary Ginga Spark! What do you mean monsters are appearing in the real world and humanity is being utterly defeated? Watch me turn the tide as Ultraman Ginga! What do you mean that after the battle was over, I received a summons from another Ultraman universe? Running back and forth between the TV series and reality, Bai Yueye can only say: being a savior is hard.