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|Japanese Name||神谷 しおん（かみや しおん）|
|Romanized Name||Kamiya Sion|
|English Name||Shion Kamiya|
|Age||14 (S1) |
|Affiliation||Starlight School |
|Data Carddass Game||Part 3 (campaign only)|
|Anime||Episode 14 - Naughty Detectives♥|
|Singing Voice||Yuna from STAR☆ANIS|
Shion is a teenage actress who debuted at the age of 10. They call her the actress of seven faces due to the fact that when she goes on stage her expression changes completely, as she goes from serious to whichever personality she wants. Due to her serious nature always taking time for work, she didn't have any friends at first.
During episode 14 she ends up in an audition to be in a detective drama called Naughty detectives and chooses the boyish character role, ending up against Ichigo. Where she reveals that if she wants something badly enough, she will even change her hair to seem more in character. She passes the audition and makes her first friend: Aoi.
Shion is serious and contained, barely ever smiling or talking back before she befriended anyone. Despite this, she is not exactly unfriendly. She believes acting is everything and her passion for it knows no bounds. She will do what she can to feel more like the character she is trying out for. However, after she makes some friends Shion begins to smile and open up a lot more, though still she remains quite serious and maintains her cool composure.
Originally, Shion had dark brown hair that reached halfway down her back with a ribbon on the side, but after cutting most of it off, it comes to her neck. Compared to the other Aikatsu main characters, she is one of the girls to have appeared in less alternate outfits. Ranging from her uniform, spy outfit, and a winter outfit.
Shion started as a serious girl that was very dedicated to acting, trying out mostly for "cool" type parts. As the story continues, Shion opens up more, eventually being able to play the role of Alice and give a dazzling smile.
Kamiya (神谷) Kami (神) means god, possibly referring to her role as a genius actress and Ya (谷 tani) means valley.
Shion (しおん) is the Japanese word for the aster flower. "Shion" is also a unisex name which could possibly be a reference to the cool, boyish roles she commonly tries out for.
- Her zodiac sign is Capricorn.
- Her birthday is a day after Nono Daichi's.
- Her favorite food is Gâteau au chocolat (chocolate cake).
- She dislikes carbonated drinks.
- Shion has a similar personality to Homura Akemi from Puella Magi Madoka Magica.
- She is never seen without a ribbon (with the exception of Mizuki changing it during the Alice in Wonderland audition).
- Shion shares her voice actress with Raichi.
- When her hair was long, she resembled Ran in terms of the air she gave off.
- She is also the only member Powapowa-Puririn to have never become Starlight Queen.
- Her brand has been confirmed to be Futuring Girl.
- Shion is nicknamed the "Actress Who Wields Seven Faces" (七つの顔を持つ女優 Nanatsu no kao wo motsu joyū).
- According to her official profile, Shion is 157cm tall.
- She shares her singing voice with Ran Shibuki, Kaede Ichinose, and Kī Saegusa.
- Out of all the idols who have performed on stage, it took her the longest time to perform from her debut, at 134 episodes.
- Shion is the only minor/secondary character in the anime whose singing voice is provided by a regular member of STAR☆ANIS.
- Main article: Shion Kamiya/Image gallery