It'd be funny to see Sumire piss off Kanae, tellling her she would rather focus on her content independently and then Kanae yells at her. Not knowing that someone was filming it. And then uploads that video of of a Imperial Pro producer yelling at this independent content creator. The video...
Probably repressed trauma. Maybe she walked in on her mom with a guy and it traumatized her so much she's now completely ignorant to anything lewd. Got a feeling that at some point something will set her off and it'll be a flood of years of repressed sex drive.