Rayven's notes trailed off as he remembered something from his old world… Ink wasn't just dark water with some charcoal powder or soot.
The proper mixture required a binding agent.
"Getting the powder is possible, but it needs something to hold together…" Rayven muttered as he tried to recall the Factory and Museum they had visited during his high school field trip…
Though he could probably just stick with the current ink production, he couldn't help but desire to have a better ink quality as well and ensure that their business would stand out.
After all, people are already used to a quill pen… If the mechanical pen he was thinking of doesn't have other advantages, it may not profit as much as he had expected.
"Was it oil? No… too thick. It'll smear…" Rayven paused for a moment.
"Right… That should work…" Rayven's eyes lit up as he finally recalled something.
Sap…
To be exact, it was the hardened sap of the Acacia Tree.
