[It's not that Nico doesn't believe him, because he has a similar ability himself. He's more curious as to how this kid is able to know something like that.]
How could you tell...? [He doesn't want to just outright ask if he can see his soul because he doesn't want to come off like sounding like a crazy person.]
Whoops sorry lol your layout is hard to navigate 8D
How could you tell...? [He doesn't want to just outright ask if he can see his soul because he doesn't want to come off like sounding like a crazy person.]