Seena Hoshiki

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Seena Hoshiki
Seena Hoshiki.jpg
Profile Info
Name: 星希 成奏 (Hoshiki Seena)
Nickname: 成奏ちゃん (Seena-chan), ぴょん (Pyon), ぴょんぴょん (Pyon Pyon)
Birthplace: Fukuoka, Japan
Birthdate: October 11th, 1999
Age: 24
Height: 155 cm
Agency: AVEX Planning and Development
Occupation: Voice Actress
External Links
Agency Page

Seena Hoshiki (星希 成奏 Hoshiki Seena) is a Japanese voice actress from Fukuoka, Japan. She is the voice for the Cinderella Girls idol Riamu Yumemi. She is represented by the talent agency Sony Music Artists Inc.

She was a member of the anisong idol group AŌP (A応P), and joined its AŌP ZERO (A応P ZERO) unit in 2017, before being promoted to a full member on March 5th, 2018. She was a part of the group's sub-unit OVERWHELM. In her groups, her member color is blue. She joined the Cinderella Girls cast as Riamu in 2019, as a result of Riamu placing third overall in the 8th Cinderella Girl General Election.

On September 30th, 2022, she was diagnosed with acute lymphocytic leukemia, a type of cancer of the blood and bone marrow. As a result, she took a hiatus, suspending voice acting work and related activities for a while. She recovered and is slowly resuming her work in consideration to her physical condition.

Concert Appearances

Event Date
THE IDOLM@STER CINDERELLA GIRLS 7thLIVE TOUR Special 3chord♪ - Glowing Rock! February 15th - 16th, 2020
THE IDOLM@STER CINDERELLA GIRLS 10th ANNIVERSARY M@GICAL WONDERLAND TOUR!!! - Cosmo StarLand (Okinawa) January 29th - 30th, 2022


  • Her hobbies include playing rhythm games, karaoke, manga/anime appreciation, singing, video editing, and searching for wigs.
  • She is skilled in basketball, and is good at doing repeated side jumps while exercising.
  • She loves anime. A few of her favorite shows are Code Geass Hangyaku no Lelouch, Charlotte, Daiya no A, Naruto, and Inazuma Eleven.
    • Her favorite types or categories of anime are ones that feature warm friendships and a touching spirit.
  • She also forms an idol group named Gemstone7, which they also sung the opening for the second season of In Another World With My Smartphone.

External Links