Orochimaru gave Grisha another examination.
Afterward, Orochimaru's brow furrowed deeply.
Seeing that something was off about Orochimaru's expression, Grisha suddenly grew nervous.
"Um... um... Mr. Orochimaru, can... can I still be saved?"
Orochimaru glanced at Grisha. "Extending your lifespan is easy..."
Grisha breathed a sigh of relief, then asked curiously, "In that case, why do you look like that?"
At Grisha's question, Orochimaru's frown suddenly turned into a smile. He swept his tongue over his face and said, "I'm a little torn. After all... three fascinating research specimens have appeared in such a short time... it honestly feels a little unreal."
Orochimaru was already halfway through his research into Ghouls. He and Kanou had some ideas about how to let Ghouls eat human food while retaining their original strength.
As for the Parasytes? They had only appeared recently, and there weren't many specimens available, so Orochimaru hadn't made much progress researching them yet.
But... Orochimaru preferred researching Parasytes to Ghouls.
No matter how powerful a Ghoul was, their lifespan had a limit, and the Kakuhou inside them was tied to that lifespan.
Ghouls didn't live much longer than humans. Their upper limit was only around two hundred years... and that was for exceptionally powerful Ghouls.
Parasytes were different. So far, Orochimaru hadn't discovered any limit to their lifespans, because their cells could divide and regenerate endlessly.
In other words, Parasytes weren't like humans. Human cells could only divide a limited number of times, but Parasyte cells had no such limit.
As long as they had enough nutrients to keep their cells active, then... Parasytes could live forever.
As for where those nutrients came from, naturally, their hosts supplied them. If a host died or deteriorated, they could simply switch to another body.
The way Parasytes changed bodies actually had much