It seems that Doi Fuuka was 1 of 114 final candidates (Copying Produce 101) in the televised audition called "IDOL3.0 PROJECT" by Akimoto Yasushi, where the new group White Scorpion was formed. All the audition candidates used alias names (I guess its Waack thing), and not their real names. Doi Fuuka used the name "Gumi" (Said she loves gummies). She was eliminated in the early stage of the audition and was not chosen to be in the 11 member White Scorpion group. White Scorpion is backed by a Cryptocurrency company. Before that she was a big fan of NMB48 and even auditioned. Her favorite food is tomatoes.
Each finalist had a twitter and Instagram account of their own to promote themselves and her account is still up with lots of selfies and Instagram videos of herself since August 2023.
https://twitter.com/I3P_gumyHer profile matches : From Osaka, Skill : Soran traditional dance
This audition was going on at the same time as Produce 101 Japan the girls. The "IDOL3.0 PROJECT" used a similar process, training camp, voting system etc.
I guess this is her fallback option, since she her dream was to be an idol. It must of been tough to go through the "IDOL3.0 PROJECT" training camp then go through the Hello Project audition training camp back to back.
We should be thankful that Doi Fuka was not selected for WHITE SCORPION, because they aren't off to a great start.