Veil of Shadows!

Under the water, he saw his hands suddenly shimmer and a second later, turn transparent like glass. 

?!

'What the fuck? Invisibility?'

Kaisen was at a loss for words.

The AI of the creators had tailored a skill for him based on his play style, and it turned out to be an invisibility spell.

He looked down and indeed, he was right. He couldn't see his legs. It was more like his legs had vanished into thin air.

'I-If the AI gives me a skill like this, what does that make me?'

He shook his head and quickly climbed out of the pool.

The water around him parted violently, but there was no visible cause.

He wanted to see his reflection for himself, to understand this new skill.

Moving to the other side of the pool, where the water was less disturbed, he leaned in again to see his reflection.

But unlike before, he couldn't see himself at all.

'Holy molly! This is the real deal.'