[That part about the aferlife makes sense, and it's a relief to hear someone else point it out. He makes a vague hand-waving motion at the rest.]

I don't know, it's just a guess. Some kind of "blank slate", "welcome to your new life' thing. Or this is just a world where everyone only wears white clothes.

[If so he'll end up looking like he's the Vice-Commander of the Mimawarigumi... looking like an elitist is the last thing he needs, especially since white clothes get dirty so fast!]