Metatron

A mysterious boy the protagonist meets at Vace. He doesn't look it at all but it seems he's Sandalphon's twin brother. Which of the two is older is unknown, but Metatron gives off a kinder, young impression. He adores the protagonist and calls her 'onee-san'.

Appearance
Metatron has short blond hair and green eyes. He wears a blue military uniform with a hat, white gloves, and gold accents.