Becoming the Main God of the Crossover Universe

As the Creator God of the largest of the Four Great Main Worlds, someone started taking a hands-off approach and traveling across the Myriad Worlds. To please this person's heart, the Supreme God who managed the main System specially prepared an auxiliary System with the highest permissions for them: Yun Ze...

She has appeared in every kind of world, including Naruto, One Piece, and Demon Slayer...

(This book belongs to the ... series. Dear readers, please don't think too hard while reading. It's just for entertainment.)