Matsuri Sakakibashi: She and Rise have done collaborative musical work in the past including on Rises charity concert. They're otherwise friendly acquaintances.
Takakazu Agano: An artist Rise met in the Club Escapade. They chatted a bit about music and art, exchanged numbers, and talked about collaborating in the future. Beyond this one meeting, nothing has happened... but he did give her a signed artwork. An exotic sketch of her.
Anzai Mizuno: He's an odd one. He never watches TV or engages in major media, so he's presently unaware of Rise's star status. He has bought tofu from her grandmother's store, and attended a private party once. Because she was able to rent out an entire place, he thinks she's related to Yakuza.
XX - JUDGEMENT:
Ryota Kishi: Ryota and Rise had a brief discussion at the KDA office about success and dealing with its downsides. She gave him her number, and he ran away suddenly. Only time will tell what because of that if anything/