Anime Crossover: Capturing Soul Emperor from the Start and Editing Skeletons

In a crossover universe, Bai Yu, a peerless disaster mage, falls and is reborn with the soul talent Undead Editing.

He can freely fuse, break apart, and modify undead creatures.

"Skeleton Mage Soul Emperor's soul = Skeleton Soul Dou Emperor"

"Black Knight plus strange fire = Undying Ash Knight"

"Skeleton Warrior plus Nine-Tails = Nine-Tailed Skeleton Jinchuriki"

"Ghost Soul plus Zangetsu = Nethermoon Blade Spirit"

"How do you fuse the Gum-Gum Fruit? Can the Book of Friends be broken down? Maybe I should try combining badges with opposite attributes and a Digivice?"

"No way! A Lich can use a Divine Light Stick?"

When his old enemies break through the dimensional barrier and invade, Bai Yu doesn't even glance at them. He says casually:

"Since you've come, join my army of calamities."

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.