"Yeah, seven Chaos Emeralds, it gives me my Super form...so yeah, I can fly with those Emeralds," Sonic says, and sees the green Chaos Emerald near them on the ground. He goes over and picks up the single Chaos Emerald.
---
This was what was sealed within Hope, memories that were painful and dreadful. Kaika felt like she was slowly being shown this pain that Hope had experienced before. All of it, much worse than what Kaika and Miki had to go through combined. Still, she tried to stay wide awake, despite this pain that was being shown through flashing memories.

(Well...Kaika isn't that careful at all. She just does things without thinking.)
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"Sounds like a plan," Sota says, following Hiei. For a moment, he felt a slight headache come and go, but shook it off after a bit.