"I see...It sounds similar to test the legitimacy of pearls found in the ocean." Roland's seen his fair share of discovering frauds, after all. But this is intriguing all on its own. He stands and dusts off his knees, finger back under his chin as he observes Senku well.

"And if I can ask just one last thing," he adds casually. "What's the geographic study got to do with your subsequent study of the void? Are they inevitably connected somehow?"