Mizutani Risa

Mizutani Risa ( 水谷りさ)  is one of the 4 members of the idol group Dearly Stars and one of the 5 girls who train Kinoshita Nanase. She is 17 years old and a 2nd year in highschool. Risa was born on February 2 and is a Pisces. She has brown hair that is usually worn on a side ponytail and brown eyes. She is 153cm tall and her blood type is O. Risa is voiced and played by Akimoto Miharu. She is also a guest character in the DreamS anime Butterfly Days.

Background
It is revealed that she is a child star, and that she actually became an idol in order to look for her mother, who left her and her little siblings with their alcoholic father. She pays for her siblings' school tuition with the money she earns from her idol pay.

Personality
She is known as lively and impulsive, but serious and dangerous when angry and when the time calls for it. She  is also portrayed as bubbly, funny, positive and energetic. She is also seen to not be dense or air-headed at all, as she noticed Kou's and Nanase's feelings for each other, often teasing them with her punchline,  "Why don't you two just confess already?".

She is easily angered when commented on her height, usually s aying, "I will grow! I still have tons of time to grow!" or "I'm not short at all!".

Relationships
Kinoshita Nanase - Good friend. Risa was the fourth person Nanase met, and they instantly became friends. Risa wants Nanase to enjoy her idol work more and to show her true colors and finally open up to everyone, and so she trains her in becoming a TV Personality.

Akizuki Suzuna - Good friend. They have been best friends since they were trainees. Suzuna is always seen criticizing Risa for her impulsiveness.

Miura Karin - Good friend. They are always seen arguing, but with good intentions.

Kisaragi Yuri - Good friend. They are always seen laughing and pranking JupiNus.

Sakurai Kou - Good friend and rival. Risa often criticizes Kou for his dumb jokes that make no sense on TV, despite him being the one on TV the most out of JupiNus.

Trivia

 * She is a guest star in Butterfly Days.
 * Her VA also voices the character Yamauchi Azusa in the anime Butterfly Days.
 * She and Yamauchi Azusa have similar personalities.
 * She is always mistaken as a middle school student.