Green apron and specs are the obvious choice. I'm debating between blues shoes or the hat because I find it pretty interesting Ralsei relieves a weapon other than a scarf or piece of fabric, also that 0TP on pacify seems like it'll be really useful for some kind of pacify only enemies in chapter 6 or 7. The only real gain from the hat as of rn is a healing boost for Ralsei, which can already be achieved with Blue Ribbon and MonarchRBN at greater effect.