I Became the Lord of Mysteries in Honkai Impact 3

When Luo Wantian, a model student from the modern world, transmigrates to the world of Honkai Impact 3rd, carrying the power of the Lord of Mysteries' world, what kind of chemical reaction will occur?

You have Honkai energy, I have spirituality.

You have the Divine Keys, I have extraordinary items.

You have the consciousness of Honkai, I have the will of the Celestial Venerable.

You have the authority of a healer, I have uniqueness.

You have holy marks, I have magic potions.

Above the gray fog, the thirteen heroes took their seats at the Tarot Gathering, while Luo Wantian sat high above, facing the collapse.

Let's see how a new Lord of Mysteries is born.

(New author, new book, super slow-burn + slice-of-life + big growth and changes + male-oriented novel with a female protagonist + whether there is a male lead is uncertain, the author uses an old version of Honkai Impact 3rd, which changes in strength as civilization develops, so there will be a self-created Herrscher.)