|Anime:||Episode 1Cite error: Closing </ref> missing for <ref> tag.|
Reina is a very sensible girl and often has to stop Mia from charging straight ahead; however, she is also very sensitive. Reina stated she wasn't very good at singing, but she holds the strongest singing skills in Prizmmy☆ and said she liked it as well. Reina disliked Mia's attitude at first, but she soon came to like her and became her loyal friend. To her teammates, Reina is one of the most reliable members and is willing to do things for them, even if they can do it themselves. Reina is also in love with Itsuki, but gets embarrassed easily every time they meet. However, Reina's love for Itsuki allows her to perform at her full potential and jump love-related Prism Jumps such as Mune-kyun Taiken.
Reina has wavy, light brown hair tied back into two high pigtails and sharp, violet eyes. She often wears black clothing, especially leggings, and headphones around her neck. Light pink hearts in her eyes are visible before performing a Prism Act.
In Episode 1, Reina makes her debut as a Prism Mate along with Karin and Ayami. The three of them are watching MARs perform from backstage until Mia comes to interrupt the show. Reina ended up disliking Mia for a while during that incident. In Episode 27, President Asechi shuffled Prizmmy☆ and PURETTY into groups of three so they could participate in the Symphonia Selection: Road to Symphonia. Reina groups with her best friend in PURETTY, Jae-Eun, and her teammate, Ayami. Though they had trouble with their team name at first, they soon come to name their team Sprouts as suggested by Mion making them the first team to debut. Reina becomes their leader and they perform their first Prism Act called Shall We Dance!? and with their new song, Mirage JET. In Episode 33, in order to get more fans, Reina and her team goes out of town to find a place to perform their new prism show. On the way, they find a chef and a waitress with a stubborn rift creating between the two. Jae Eun is determined to mend their relationship which leads to their new Prism Act, Shall We Love!? Propose!. In Episode 36, the Symphonia Selection: Road to Symphonia begins and Sprouts is about to perform first before Serenon with K. Ayami has a nightmare the night before, and begins to feel anxious and tensed. Thanks to Kaname, Ayami was able to pull herself together in time for the show. They perform a new Prism Act, Rainbow Road. In Episode 39, Don Bombie reveals his true identity, he leaves on a helicopter along with MARs. He holds another competition, the Symphonia Selection: Sky High Symphonia. Reina joins Prizmmy☆ once again and if her team manages to defeat MARs in this competition, MARs will return to their company, but if they lose, they will be forced to transfer to the Symphonia Company. Serenon with K is the first to go up against MARs, though they lost, Kaname discovers that Aira's soul is beyond the door she entered during her Prism Act. In Episode 40, Love∞Mix loses to MARs due to Itsuki's aggressiveness. Prizmmy☆ starts to feel the pressure when they see two of the best Prism Stars fail. When it's Prizmmy☆'s turn to go up against MARs, Reina receives a remake of the Symphonia Top designed especially for herseld along with the rest of her teammates. Though everyone in Prizmmy☆ successfully performs Aira's Road To Symphonia, they weren't able to bring back Aira and darkness threw them to the ground. Only then, Reina and Mia realised that they should have performed their own Prism Act instead. They all get transferred to the Symphonia Company leaving PURETTY with a clue.
- Main article: Itsuki Harune
- Main article: Mia Ageha
Reina and Mia are very close friends and hold a massive friendship, even though Reina may have to treat Mia like a kid sometimes to calm her down. Mia is a valuable friend to have.
- Main article: Yong Hwa
Although he tends to tease Reina about her crush, he deeply cares for her. The two are very good friends. Yong Hwa also has a nickname for Reina as well as the other girls in Prizmmy☆. Yong Hwa likes to calls her Rei-pon. |-| </tabber>
|e · d ·v||Prizmmy☆|
|Members:||Mia Ageha • Reina Miyama • Karin Shijimi • Ayami Ooruri|
|Prizmmy☆||Mia Ageha • Reina Miyama • Karin Shijimi • Ayami Ooruri • Mimmy • Remmy • Rimmy • Yammy|
|PURETTY||Hye In • Shi Yoon • Jae Eun • Chae Kyung • So Min • Vivvy|
|MARs||Aira Harune • Rizumu Amamiya • Mion Takamine • Rabi-chi • Bea-chi • Neko-chi|
|SERENON with K||Serena Jōnouchi • Kanon Tōdō • Kaname Chris|
|Callings||Shou • Hibiki Tōdō • Wataru|
|Love∞Mix||Itsuki Harune • Yong Hwa|
|Others||Kyoko Asechi • Jun Takigawa • Akai Mega-nee • Mr. Penguin • Yamao Yamada • Kei Coach • Kintaro Asechi • Yunsu • Michelle • Myeong Ja|
|Minor Characters||Handsome Boy • Tacky • Ichirō Shijimi • Saburō Shijimi • Hachibe Shijimi • Shiono • Hifumi Yanagi • Yukie Yanagi • Shiotani • Kurumi • Yumemi • Girl A • Girl B • Mahiro • Yū Hirōmi • Shiotani • Sumiko Dan • Hiroshi Harune • Omi Harune • Uru & Eru Harune • Sonata Amamiya • Bully • Jun's Father • Announcer|