Also known as: エルトナム
Character from Under Night In-Birth. She is almost completely identical to (and may actually be) Sion Eltnam Atlasia from Melty Blood, the previous fighting game from the same developers, French-Bread. She's constantly breaking the Fourth Wall, refers to other characters as "rookies" and prefers to be called "Miss Eltnum" as she sees herself as a sort of "mentor" to them. She also looks up to Akatsuki and calls him "senpai".
Voiced by Akesaka Satomi.