|Hair Color||Dark Purple|
|Family||Hikari Todo - younger sister|
|Theme Song(s)||Absolute Life of a final show girl|
|Favorite Brand(s)||Baby Monster|
|Voice Actress||Saki Yamakita|
Shion has dark purple hair tied up in a messy side ponytail and gold colored eyes. She prefers to wear Cool-type clothing, mostly in black and white.
Shion is a calm and serious girl who tends to use the Go board to solve her everyday problems. She is also quite competitive, which could be due to the fact she was the student level Go national champion before becoming an idol. Because of this, Shion has a habit of saying "igo" (イゴ) as well as idioms (四字熟語・よじじゅくご yojijukugo ). As an idol, she is the first to refuse to trade Friend Tickets, as well as the first one to forcibly trade Friend Tickets
Casual: Dream Baby Monster Cyalume Coord
Usagi - Shion's manager in PriPara.
Dorothy West - One of her teammates in Dressing Pafé. Due to their clashing personalities, they tend to argue a lot, leaving Leona to break up their fights. As the series progresses, the have less and less fights and become friendlier with each other.
Leona West - One of her teammates in Dressing Pafé. He stops the fights between her sister Dorothy and Shion. Shion respects his kindness and doesn't fight with him.
Mirei Minami - They first meet when Shion is given a warning ticket by Mirei for breaking rule #11, "Solving Go problems in the hallway is strictly prohibited", and therefore have a special rivalry. Their intelligence seems to be mostly equal, which occasionally leads them to fights. Despite this they are both quite friendly with each other.
Hikari Todo - Her younger sister as well as teammate in SHiMer. The two of them get along extremely well and have never been seen fighting. The two also seem to understand each other well, sometimes being able to predict what the other was going to say.
Mizuki Hoshizora - One of her childhood friends who she met in Paprika Elementary School. They're also teammates SHiMer. Mizuki calls Shion "Shinocchi", which Shion got annoyed at at first, but gradually got used to it.
- She is the sixth Kami Idol in the series.
- She shares her surname with Hibiki Toudou, Rizumu Toudou/Amamiya and Kanon Toudou from Pretty Rhythm Aurora Dream and Pretty Rhythm Dear My Future, PriPara's predecessor and sister series, though spelt in different kanji.
- She also shares her first name with Shion Kamiya from Aikatsu!.
- Her birthday falls on January 5th, which is a play on the word igo.
- She is currently in the most units on this wiki, totaling up to 3. (SHiMer, SHiMering Elegance and Dressing Pafé.