Mirai Momoyama, Emo Moegi, and Rinka Aoba are 2nd year students at Kirarigaoka Middle School in Kirajuku, and together they form an idol group called "Miracle☆Kiratts"! The popularity of their streaming programs has skyrocketed! One day, a mysterious Pri☆Chan idol named "Dia" appears, and everyone is given a Jewel Pact. Along with that, she announces the opening of the "Jewel Auditions", an event

Mirai Momoyama, Emo Moegi, and Rinka Aoba are 2nd year students at Kirarigaoka Middle School in Kirajuku, and together they form an idol group called "Miracle☆Kiratts"! The popularity of their streaming programs has skyrocketed! One day, a mysterious Pri☆Chan idol named "Dia" appears, and everyone is given a Jewel Pact. Along with that, she announces the opening of the "Jewel Auditions", an event where idols with a jewel-like shine are chosen to become "Jewel Idols". Only those who can pass the audition with a sparkling heart can make their "Kiratto Jewel" shine, allowing them to receive their "Jewel Coord". And out of all of them, only the best "Jewel Idol" can wear the long-admired "Diamond Coord". Who's going to be?! (Source: PriChan Wiki, edited)