TV-Series
Description
Mirai Kasuga is a fourteen-year-old second-year junior high school student from Tokyo who serves as the central protagonist and red representative of the Million Stars within 765 Production. Her journey toward becoming an idol began when a friend took her to a live concert—in some depictions, this friend is Shizuka Mogami—and the experience left such a powerful impression on her that she immediately quit her previous club activities to pursue idol work full time. She is a Princess-type idol in the Theater Days classification and a Vocal-type in the original game, and she often carries herself with a pose that involves pointing energetically upward with one hand.

Personality-wise, Mirai is defined by an irrepressible, happy-go-lucky energy and a cheerful disposition that helps her march to the beat of her own drum. She is warm-hearted and eager to help others, frequently spending time assisting with club activities and mingling with elderly neighbors in her local community. At the same time, she is somewhat dense and absent-minded; she has a tendency to forget her homework, she once answered the question of which historical era Oda Nobunaga belonged to with the vague reply of the past, and she often speaks before thinking. Her cooking skills are notably poor—the producer once made a truly alarmed expression after tasting a homemade drink she prepared. Despite these shortcomings, she possesses a strong inner drive to give her best effort in everything related to being an idol, and her lack of book smarts is balanced by a genuine emotional openness and a willingness to learn from those around her.

Her primary motivation is the simple but powerful desire to carry forward the dream she first glimpsed at that concert: the dream of becoming an idol who can bring joy and inspiration to others. She approaches this goal with boundless optimism and a determination that never wavers, even when she encounters obstacles or her own limitations. Her name, Mirai, meaning future, reflects this forward-looking, aspirational quality.

In the story, Mirai occupies the role of the leading figure of the Million Live branch, a position analogous to Haruka Amami in the original 765 Pro All Stars. She is the face of the series and frequently appears as the center of the group. She forms the core main trio along with Shizuka Mogami and Tsubasa Ibuki, collectively known as the unit Strawberry Pop Moon. Her key relationships include this close bond with Shizuka and Tsubasa, the guidance and support of the producer, and friendships with the many other idols in the Million Stars roster. Her role as the emotional anchor of the group means she often helps draw other members out of their shells and fosters a sense of unity.

Over the course of her development, Mirai grows from a starry-eyed novice who stumbled into the idol world on a whim into a more confident and capable performer. She learns to channel her raw energy into polished stage presence and to support her fellow idols not just with enthusiasm but with growing understanding and empathy. Her journey is one of discovering what it truly means to be an idol and how to share that dream with the people around her.

Among her notable abilities, she has a natural talent for singing, which is reflected in her Vocal attribute classification. She also has a hobby of collecting cute hairclips, a small detail that underscores her girlish and cheerful nature. Her physical attributes include a height of 156 centimeters, a June 28 birthday, blood type O, and measurements of B78-W54-H77. Her short brown hair is usually styled with a scrunchie and a hairclip, and she has brown eyes. Overall, Mirai Kasuga embodies the energetic, heartfelt spirit at the core of the Million Live series.