"HEART ATTACK?" Yuno asked worriedly, getting up. "Hyung, does your heart hurt these days? High-ranking Espers who overwork themselves usually die from a heart attack."
Well, calling it a 'heart attack' was the easiest way to explain it to Civilians.
But, to be more precise, it was an Esper's Core breaking.
Actually, Espers who died from Rampaging actually died because their Core broke. So, it's pretty similar to having a heart attack.
Hence, Yuno got worried for his Esper.
"Hyung, is your Core okay?"
"My Core isn't breaking, if you're worried about that."
"Then why are you saying I'm giving you a heart attack?" Yuno asked, confused. "If you're trying to say I'm the source of your stress, then just say you'll die from high blood pressure. Why insist on having a heart attack?"
