Tagged it with the appropriate MomiMomi tags, since her name is used as one of the runes here.
I'm also leaving this as partially_translated for now, since I was deprived of Where's Waldo in my childhood, and suspect that there might still be some other runes lurking here.
MomijiSha
The "Sha" part of Aya's last name, Shameimaru (射命丸).mei
The "mei" part of Aya's last name, Shameimaru (射命丸).