When Rino returned to his temporary hut in his unbuilt town with the nine ex-bandits, he quickly tested if they were weak to sunlight.
Unlike ghouls, skeletons, zombies and vampires, ghost-type undead should have some resistance to the sun even if they were more transparent and terrible against salt. It did not help that Rino had salt in his shadow sack, but whatever. It's not like they were capable of eating anyway.
