Tenka Osaki is a gentle and soft-spoken idol from the multimedia franchise 'The Idolmaster'. Part of the 'Shiny Colors' segment, she is a member of the idol unit 'L'Antica'. Tenka is known for her shy and reserved personality, often overshadowed by her more outgoing sister, Amana Osaki, who is also an idol. Despite her timid nature, Tenka strives to improve and shine on stage, endearing herself to fans with her earnestness and charm. Her role in the series highlights themes of personal growth and the supportive bonds between idols.