Ultraman in the Super Theological Academy

Reborn as Xia'er, he strives to become an Ultraman at the peak of the O-50 warriors. Under the instigation of Ultraman Hikari, a 'hacker' merchant and good friend, Xia'er goes solo to fight Tregear. Tregear roars: "Dimensional Gate!!!" With a blink of an eye, Xia'er arrives in an unfamiliar universe. Angel Civilization? Shenhe Civilization? And the Styx Civilization? What's all this? However, when he sees the angel lady falling from the sky, Xia'er, a thousand-year-old single dog, reveals… (to be continued)