Mihoshi is an Akiba-type Gunpla idol. She has no interest in Gundam or Gunpla, but her agency sees Gunpla Battle as a stepping stone to her career as an idol. Because of this, she cheats her way into Gunpla Battle by paying fans to build her Gunpla and getting to know her opponents up close and personal before sabotaging their Gunpla. She is shown to be a caring person, as she was concerned for Ricardo Fellini during his battle with Aila, and Sei and Reiji when Fellini battled with them.