All credit to Captain Epic from KHHSubs.
It's the idol unit T-SET
Sanada Mai
An idol from "Osaka Talent Agency".
Member of the Osaka Talent Agency's idol Unit called "T-SET".
Taking a gamble with a major debut from a major record label, the 'super unit' appeared on a TV show named "Princess League", a show for new idols to compete, where they proceeded to advance through to the finals with a series of overwhelming performances. Their singing and dancing abilities greatly exceed those of Haruka.
She is a proud person and is an out-and-out advocate of meritocracy. With a low opinion of Haruka, an inexperienced girl aiming to become an idol, she repeatedly bumps heads with her at every opportunity.
Osawa Azusa
An idol from "Osaka Talent Agency".
Member of the Osaka Talent Agency's idol Unit called "T-SET".
Along with Mai, she is a treasured member of Kansai's leading production company, Osaka Talent Agency. She entrances many fans with her magnificent "all-or-nothing" performances.
In contrast to the strong will and shapely looks of Mai, Azusa has childish looks and a charming personality, which gets her a lot of support from the male fans.
But beyond her warm looks she, much like Mai, can perform to a high standard beyond anyone's imagination. She is a 'super idol' who is regarded as the favourite to win the Princess League.
Paku Mirei
Head of the talent agency "Dyna Chair".
Female head of the talent agency office "Dyna Chair", who takes up residence in Soutenbori, Osaka.
It is by no means a large production company, but she has a great eye for talent that can sell well and is well respected in the Kansai entertainment industry.
In the past she herself was an idol, but she faced many obstacles inherent in the unique world of the entertainment industry and thus was forced to abandon her dream. Henceforth, she was committed to finding a great talent to whom she could pass on her dream and nurturing the next generation. One and a half years ago, she had a fateful encounter with Sawamura Haruka in Okinawa.
After that Haruka moved to Osaka, along with entering a high school, where Paku dreams of giving her a major debut in a mere six months. She continues to prepare a top class staffing team and impose strict guidance on Haruka.
Every day is a tough, rigourous, lesson-laden day. In order to realise her dream of being at the top of the entertainment industry, Paku continues to focus all her energy on Haruka.
But for the two of them, who have embarked on this journey to achieve their dreams, a great wall stands before them in an attempt to thwart those dreams. So that they may keep their dreams alive, their fierce struggle begins...
Madarame Tadashi
Yakuza boss of the Yamakasa family.
He is the boss of the Yamakasa family, a Yakuza syndicate which rules over Kyushu's largest entertainment district - Nagasu District in Fu.kuoka.
Despite his old age, he always level-headedly analyses the strength of the clan and has an understanding of its current situation. He respects Dojima Daigo, who cast aside his pride and has arrived seeking to form an alliance, and attempts to come to an agreement with him.
He is a pacifist who believes things should be resolved via dialogue rather than conflict.
In typical elderly yakuza fashion, he values propriety and sympathises with Dojima Daigo who, though a young man, has an understanding of decorum. But all of a sudden many members of the family feel severely hostile towards the Tojo Clan, who are making one-sided demands, and there are fears this could escalate into needless skirmishing.