Ena is a pale-skinned girl with short brown hair that has hair strands swept to the left side and blue eyes.
When outdoors or camping, she wears a puffy blue coat and maroon leggings. She also wears white-and-blue ankle-warmers, grey boots, a white-and-blue scarf with grey gloves and earmuffs.
In school, she wears the typical female uniform (seifuku, 制服).
Ena usually likes to sleep with Chikuwa (Ena's dog). She loves to play with Rin-chan's hair
Ena got invited by The Outdoor Activities Club to some Christmas celebration and which this is her first camping in the series.
Ena usually messages her whenever she's going on a camping, and she's the reason why Rin started Group Camping by convincing her and which left her thinking about it.
Ena got texted that Rin is going to a certain camping.
- The name Ena means "favor, benefit" (恵) (e) and "that" (那) (na).
- Ena's surname Saitō means "simultaneous" (斉) (sai) and "wisteria" (藤) (tō).
- Ena hates cold.
- Ena's birthday is on September 1.
- With Chikuwa