Kotori Otonashi

Original Name (Japanese): 音無小鳥
Romanized Name: Otonashi Kotori
Nicknames: Piyo-chan
Series: The iDOLM@STER
Age: 20s
Weight: 49 kg
Height: 159 cm
Date of Birth: September 9
Blood Type: AB


Kotori Otonashi is described as outgoing and intelligent, but sometimes shy. Due to her position as the secretary of 765 Production, she often falls asleep or daydreams during slow hours. She is also known to spend a lot of her free time surfing forums, which has led to her being perceived as a bit of a “pervert” by others. Although she is not an idol herself, Kotori loves to sing.


Kotori is the daughter of a former idol named Kotomi Otonashi. She works as an office clerk at 765 Production, the talent agency that manages the main idols of “The iDOLM@STER” series. Kotori’s exact age has never been revealed, but it is known that she is slightly older than Azusa, making her somewhere in her twenties.

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Kotori has long light brown hair and brown eyes. Her hairstyle features two small braids on the sides of her head. She is described as having a petite, youthful appearance, standing 159 cm tall and weighing 49 kg.


As the secretary of 765 Production, Kotori likely possesses strong administrative and organizational skills to handle the day-to-day operations of the agency. Her love of singing suggests that she may also have some musical talent, though this is not a primary focus of her character.


Kotori Otonashi was first introduced on the website for the arcade game “The iDOLM@STER”. Since then, she has appeared in various anime, manga, and other media related to the franchise.

Kotori Otonashi – FAQ

Here are 6-8 FAQs about Kotori Otonashi from “The iDOLM@STER”:

Who is Kotori Otonashi?

Kotori Otonashi is one of the main idol characters in the multimedia franchise “The iDOLM@STER”. She is a member of the idol group 765 Pro and is known for her cute, innocent personality and her talent for designing costumes and accessories.

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What is Kotori’s role in 765 Pro?

In addition to being an idol, Kotori serves as the producer’s assistant and is responsible for tasks such as costume design, choreography, and helping the other idols prepare for their performances. She is very proficient in these behind-the-scenes tasks and plays a crucial role in supporting the 765 Pro Idols.

What is Kotori’s relationship to the other 765 Pro idols?

Kotori has a close relationship with the other 765 Pro idols, especially Haruka Amami, with whom she is best friends. She is caring and supportive of the other idols, often offering encouragement and practical help to help them succeed.

What are Kotori’s hobbies and interests?

Kotori is passionate about fashion and design, and she often makes costumes and accessories for the 765 Pro Idols. She also enjoys baking and cooking and is known for her culinary skills. In addition, Kotori is interested in photography and likes to capture moments of the idols’ daily lives.

How does Kotori’s character develop over the course of the series?

Throughout the series, Kotori’s confidence and self-awareness grow as she takes on more responsibility and becomes an integral part of the 765 Pro team. She also becomes more assertive in supporting the other idols and advocating for their needs. Despite her shyness at times, Kotori’s dedication and hard work are essential to the group’s success.

What are some of Kotori’s notable moments or accomplishments?

One of Kotori’s most memorable moments is when she designs a special costume for Haruka’s solo performance, which helps boost Haruka’s confidence and leads to a successful performance. Kotori also plays a key role in organizing 765 Pro’s annual live concert, demonstrating her exceptional planning and organizational skills.