The difference is the amount of faith that they have.

[Now that they're talking about something 'safe,' Yuuto begins to sound a lot more confident. For better and for worse, Inaba has found someone who likes to share knowledge. Someone who also seems to be an expert on the topic.]

In this world, 'spirits' are souls born without a body. But some things cannot be seen unless someone is looking for them. For example~ Inaba? [He's dropping the honorific after her correction;] In your home world, did people ever claim to see ghosts in creepy locations?