Genome Tree 5 Volume 4

The [Genome Tree] continued to morph and surround Yō‘s legs with a
bright light.
And as the light slowly dimmed, it revealed her usual tall leather boots
covered with a mail coat of silvery scales and white shimmery wings that
sparkled as they sprouted near the front of the boots.

"It‘s complete!"

Yō had used her [Genome Tree] to imitate the appearance of a majestic
beast that she had not seen before
Boots of Pegasus, and she turned
to face Izayoi.