I somehow love how Satoko still wearing hijab when Nada prays even though it's not required at all, she just does it out of respect for Nada.
Satoko is such a pure soul. Must protect.
@Kousora: I think it also plays up the inclusiveness of the Shinto outlook on religion, as explained by Satoko herself in Chapter 59 -- to her, "any country's god is a god to (her)", and so she "respect(s) them all".