The Price of Evolution    

It felt so surreal knowing that his body was evolving and that he would acquire abilities beyond the human being could do – providing that they weren't just pulling his legs, that is.

But something told Ren that they weren't. And what could they possibly gain from fooling him? A good laugh, perhaps, but besides that, there was nothing.

Ren's excitement grew, and he couldn't help but prod further. "Tell me, what are these powers? What can you do?"

Angelica's expression turned serious; her voice tinged with a hint of warning. "Rule number one . . . don't ever tell your abilities. Not even to your family and friends."

There were rules now? Ren's brows furrowed with a mix of intrigue. "Why?"

"Trust her," said Joker. "New rules would overtake the old ones soon enough, and rule number one is the most important. Remember that."

Ren felt like they wouldn't tell him, no matter how much he persisted, so he decided to let it go.