On 4 December, Shion debuted her fifth 2D costume. On 2 December, Shion announced on her Twitter account that she would get her fifth 2D costume. On 1 November, she reached 900,000 YouTube subscribers. On 8 October, Shion's Twitter account was verified.

On 17 August, as part of her 3rd anniversary, Shion debuted her first solo original song ' MAGE OF VIOLET.' On 31 July, Shion returned her activities with a singing stream. On 20 July, she reached 800,000 YouTube subscribers. On 14 June, Shion stated during a short stream that she would go on a hiatus from streaming due to worsening of her throat's condition. On 6 April, she reached 700,000 YouTube subscribers. On 15 January, she reached 600,000 YouTube subscribers. Coincidentally, Takanashi Kiara reached that same threshold later that day. On 23 November, she reached 500,000 YouTube subscribers, making her the 22nd hololive member to reach this milestone. On 15 November, she debuted her fourth 2D costume during a stream, in this costume Shion wears a black gothic dress with cat ears and tail, the dress is decorated with various ribbons with the appearance of chains, including one tied to her neck, the eye that decorated her hat in her original outfit is now in the chest area of her dress, similar to her second 2D costume her hair is styled with ponytails but unlike that costume, in this one she doesn't have buns, finally the tradicional green and yellow triangles that all of her costumes have, are now only referenced as she wears triangle earrings. On 16 October, hololive's Twitter account announced that Shion, Houshou Marine, Shirogane Noel and Yuzuki Choco would get new 2D costumes. She debuted her updated model during a stream later the same day, featuring more facial expressions, her hair bangs have more movement, in her hat the tip and the 'eyelashes' of the eye were added a bit of movement, along with general movement improvements. On 28 July, she announced on her Twitter account that her original 2D model would be get an update. On 24 January along with the other hololive girls up to the third generation, she debuted her 3D idol outfit at hololive's 1st fes.

On 2 January, she announced on her Twitter account that she would get her third 2D costume, this was revealed to be a kimono celebrating the new year later the same day during a stream on YouTube. On 26 August, she revealed her 3D model swimsuit on a stream. On 1 August, she debuted her second 2D costume. The 3D model was later revealed on 12 May. On 7 May, she announced in a stream that she would debut her 3D model. Her Twitter account was opened on 1 August 2018 while her YouTube channel was created on 3 August although her YouTube activities did not start until her first stream that was live on 17 August. One of her most iconic cries is her guttural scream of 'NEEEEEEE.' This was most famously uttered by Shion after Natsuiro Matsuri revealed that Shion's wet sneezing sounds were heard by Matsuri's listeners in one of her livestreams.

She has a friendly rivalry with Minato Aqua, and the two can often be seen playing petty and mostly harmless pranks on each other. She wants to be seen as an adult, but thanks to her childish appearance and mannerisms, all attempts by Shion to appear adult-like end up looking very silly. Shion is a smug, cheeky brat (' kusogaki') who speaks bluntly without the usual politeness/consideration associated with the Japanese language, and flirts shamelessly with other hololive members. She can barely say her greeting, “Hellshio”. She calls herself a highborne black magician (probably).

A random self-proclaimed child (though she is probably an adult) who appears around the Demonic-Realm Academy.

Murasaki shion r18