The quest name is Power Curiosity, and the hint was "Now that Sarah knows her power, there aren't many girls left to discover their own. (Talk to scarlet when she's in the electronics store on Thursday morning" I went there and talked to Scarlet, but a notice came up telling me that I needed to download the next chapter from F95. I tried both the itchio and F95 update but no matter what I did I just got the same message popping up. (Don't remember the exact wording of the message and can't check as I switched to the PC version of the game to continue playing.)
Hope that's helpful, and Love the game!