Despite her looks, Ina'nis is actually a priestess of the Ancient Ones. One day, she picked up a strange book and then started to gain the power of controlling tentacles. To her, tentacles are just a part in her ordinary life; it has never been a big deal for her. However, her girly mind does want to get them dressed up and stay pretty.
After gaining power, she started hearing Ancient Whispers and Revelations. Hence, she began her VTuber activities to deliver random sanity checks on humanity, as an ordinary girl.
Ninomae Ina’nis is a human girl of undisclosed age, joining as part of Hololive EN’s holoMyth group. Contrary to her lovecraftian horror-esque appearance, she has gained a reputation to be the most tranquil of HoloEN bunch. An extremely talented artist, Ina's sketching and drawing streams have earned the praise and admiration of not only the Takodachis, but her fellow Holopro members as well. Ina is also a Pun enthusiast, regularly making puns any time she gets the opportunity, regardless of the timing or situation. Of course, this has some unforeseen consequences such as her jokes falling flat, resulting in viewers typing out "INAFF" in the live chat. As the priestess of the Ancient Ones, she is not afraid to release her hidden power to enforce chat rules, with the assistance of AO-Chan. Unfortunately, Takodachis have adapted and come to embrace Ina's bonking, which has been done with crowbars as well. When combined with the rest of Holomyth, she attempts to play the Straight Man role, however she eventually gives in to her genmates' often chaotic schemes. 
Ina’nis, nicknamed Ina by her own request, is a soft-spoken yet sociable individual with an easy-going temperament. She is very loving and aware towards her fellow members, capable of talking extensively about each one and their respective quirks.
Ina is very engaged in popular culture with massively diverse tastes, enjoying a large variety of genres in an equally large pool of mediums, whether it be mecha anime, pop rock, fps, only to name a few.
A notable feature of Ina is her significant artistic talent, illustrating multiple promotional content for HoloEN as well as the majority of assets she uses for her vtuber activities.
Ina's fan base and membership are both called the Tentacult, a portmanteau of "tentacle" and "cult". Each individual fan is called a Takodachi, a portmanteau of tako (タコ, octopus) and tomodachi (友達, friend). The plural form of Takodachi, Takodachis, can also be used as a byword for Ina's fan base as a whole. A Takodachi is depicted as a cartoon purple dumbo octopus designed by Ina herself.
Meaning / Notes
Can mean "we're all happy," "we are hype," and "we are here," as according to Ina. The "fourth wah" is considered taboo in Ina's fanbase.
Good morning / afternoon / evening!
All 3 words are said in "morning / afternoon / evening".
Meaning / Notes
[It's] Tako Time or Membership Ina Peek emote
In response to "Wah!"
10Q or bye bye
In response to the stream about to end. "10Q" is a pun on "thank you".
In response to "Wah!"
A kaomoji of a saluting Tako. Used after the stream has ended.
When asked by her mother about what WAH stands for, she started numbering possible meanings: 
We Are Happy / We're All Happy / We're Always Happy
We Are Hype / We're All Hype
We Are Here
We Are Horny (The Forbidden WAH)
Win All Hearts
Work At Home
We Are Honor-students
We Adore Her
Created a VRChat world which she shared with her fans on her second birthday celebration.
Refers to her regular stream time as Takotime, based off her live stream hashtag. This time slot is usually at 2pm PT / 06am JST / 10pm GMT / 5pm ET. This is subject to change for time zones that follow Daylight Savings.