After transmigrating to the world of Z, I get a sign-in System and sign in to Precursor Kainen from the start.
"Congratulations, Host, you have successfully signed in and received: Xingtian Armor."
"Congratulations, Host, you have successfully signed in and received: Ice Soul Sword."
"Congratulations, Host, you have successfully signed in and received: Golden Radiance Power."
I can even recycle useless cards to synthesize transmigration cards and travel to other Ultraman worlds.
This book is also known as: "In the World of Z: Signing In to Precursor Kainen from the Start"
