Ray is a fair-skinned girl, with short gray hair. She wearing her school uniform which is a white dress shirt with a pale tie, covered by a black coat. She wears a light gray skirt, black stockings and white shoes.
- She, Erika, Melissa, Louise, Alice and May are the only known characters to have common names that aren't Japanese.
- Ray is an English name with German origins.
- Her name Ray means protection of the mind, intellectual property and intelligence.
- The kanji for her surname "Atsue" means "thick" and "river".
- Ray is the only one in the group whose name does not start with M.
- Ray is a unisex name, even if it is more used among boys.
- Ray and her sister are the second couple of twins to appear, the first couple of twins are Aya and Tsuyuno.
- In theory, Ray is also May's older sister, since she was the first that came out of the maternal's womb.
- In the Chapter 136, since Keiji Komura (Kayo's father) was never arrested, Ray never bullied Kayo by calling her "daughter of a criminal".
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