https://nitter.net/ONEMORNING_1/status/1120826553951084544
Searching for 大島璃音 (without the hashtag), first appear this tweet with a pic of Non when she was a student, probably never posted before here or on 4chan (I know other pics of that period were already posted) 
This tweet was from April 2019

https://nitter.net/ONEMORNING_1/status/1161423251286851584
While here there are 2 other pics of her (there's another one where the subject was probably the show host) 
This tweet is from August