She has purple hair and two-toned purple-blue eyes. Her hair is tied in a ponytail and draped over her right shoulder. Notably, she has heterochromia. Except for her eye color, she is the spitting image of her mother, and even then, the purple hue makes them look identical. A girl with dark worries and a complex past, she is extremely cynical and pessimistic. She maintains a bright persona at school, but when alone or with her circle members, she exhibits a chillingly low-tension state that makes people wonder if she's the same person. Her habits when alone include muttering words like useless, pathetic, and trivial.

She has light grayish-brown hair. While all other members of 25-ji, Nightcord de. have long hair, she stands out with a bob that reaches halfway down her neck. Her charm point is a braid on the left side of her hair secured with a small ribbon; in middle school, she apparently didn't braid it. She has very strong pride. When faced with direct criticism from her father or teachers, she tends to deny or avoid it rather than admitting it readily. However, she isn't completely closed off; though she didn't admit it to her father's face, she accepted his feedback on color and revised her work after he left, and she even acknowledged a teacher's harsh evaluation and returned to art school to improve. She is the type to speak her mind without hesitation. However, despite her eloquence, her pride often leads her to get flustered and snap at Asahina Mafuyu's blunt remarks or Akiyama Mizuki's mischievous jokes. Among the unit members, she is particularly skilled at sharp-tongued honesty and persuasion. Whether it was Mafuyu who wanted to disappear, Kanade who was obsessed with salvation, or Mizuki whose mental state collapsed due to the fear of being outed, Ena played a decisive role in changing their minds through her characteristic directness and appropriate advice. She possesses a straight and kind nature. In fact, her sharp-tongued side is closer to a manifestation of her being honest with her emotions and expressing them actively.

Characterized by pale skin, long silver hair, and pale blue eyes, she has a small build. She is officially recognized as one of the cute characters.