I traveled through hundreds of worlds at once

"Finally done! Evolution potion!" Yi Hui in the principal's office of New World School excitedly looked at the glass test tube filled with red liquid in his hand.

The red liquid in this test tube is the result of his research over the past half a month. It is an improved strain that greatly weakened the strong phagocytic ability of the subspecies Black Light Virus in his body.

Because the phagocytic ability of this improved strain of virus has been greatly weakened, after being injected into the cursed children, it will no longer cause a huge burden on the bodies of the cursed children as before, causing the transformation to fail and become a mad Butterfly.

Instead, it will be with the cursed children.