"Wouldn't it stand to reason to etching this on the sword would make it a more permanent solution?" Senku asked, tilting his head slightly.

"And if you're right about the character placement." He set down the two he'd picked up.

"These aren't identical. How finicky is it? The differences are minute, angles, slightly being off centre, even just between these two. I'm talking millimetres of course, but the differences are still there."