Chronicles of the Light Gatherer

Only after Xia Yu transmigrated did he realize that something seemed off about this world.

What? The second-generation Kyrieloid defeated Ultraman Tiga?

What? There was no ancient guardian, Noah?

What? It turns out I'm the strangest one of all?

--A story about someone traveling through different timelines and bearing witness to them all, more or less.

P.S. The side stories only cover the Ultraman world. After the main story is finished, I might take a stroll over to the neighboring Kamen Rider set.