Iori Minase is the daughter of the owner of Minase group, one of the associates of the 765 Production president. Although she is quite polite and refined on stage and in public, when with the Producer and other girls she has a very sharp tongue, and is quick to berate other people's intelligence (especially the Producer's).
Iori has grown up with a deep complex of hating to lose, and thus rarely shows any weaknesses. Iori hates being overshadowed by her father, who constantly brags about his economic successes. She does, however, have a much softer side that she shows from time to time, making her personality that of a perfect tsundere character. The stuffed rabbit that she carries around with her constantly is named "Usa-chan", which has been with her since she was little, especially because she is frequently left alone in the house.
Iori is shown to be close to Yayoi, she once invited her to sleep over at her house. Iori once said that Yayoi's house is as big as her(Iori)'s dog's house.
- In The iDOLM@STER 2, Iori makes an idol group with Ami and Azusa called Ryūgū Komachi. She also changes her hairstyle, leaving a bang out of her hairband. In iDOLM@STER, she didn't have any bangs and pull her hair back with her hairband.