Ena's father is a famous artist and her inspiration for drawing, however, he does not believe she has what it takes to become a professional artist. She is also Akito's older sister; and she knows her way around social media, being relatively popular online. Her selfies are shown to get more recognition than her illustrations. 

Ena is a strong-willed girl. When she draws, she starts living in her own world and disregards everything around her. As observed by her fellow members, she forgets to turn off her mic, and they then hear her muttering several comments about her illustrations, mostly about how they're not what she is going for. Because of her father's inability to accept her and her illustrations, she's grown envious of those she deems to have talent and becomes bitter when those people throw it away; as she does not believe she has talent. Furthermore, she craves attention and praise for her art, leading her down the road of perfectionism. She gets flustered when her fellow members compliment them and angry when they do otherwise. 

Ena wants attention, as it somewhat gives her comfort and happiness. She is fond of taking selfies of herself and posting them online and is very proud of them. As seen in one of the 1-panel comics, she panics because her selfies usually lose to cat videos. In the stories of 25-ji, Nightcord de., she is sometimes seen taking a selfie when she is down and posting it on the internet. She would then cheer up because of the compliments and praises from the comments she sees.

Ena's Introduction: https://www.youtube.com/watch?v=9UYccoM8AvE