The companion looked at Nohara Sa, confused: "Clue, what clue?"
Nohara Sa looked at the companion with a look as if they were an idiot, and asked: "Can't you figure it out? This Huo Sining is just an exchange student, staying at Waseda University for only one semester. Why would she return to her country in such a short time?"
The companion shook their head: "What's so strange about that? It's not uncommon for foreign students to return to their country during their studies, if they miss home, or have something important to handle, they would naturally return. It's just a plane ticket, nothing against the rules."
Nohara Sa shook his head at the companion's words: "You still haven't grasped the key to this matter. You've forgotten that we're investigating a smuggling case. Those machine tools have disappeared now, they've been moved by the smugglers, but those things are big and obvious, easily noticed. So they can't hide them forever, they have to think of a way to move them out."
