Just did my research on age gaps and keeping it platonic was a good idea back when I headcanoned Sayori to be 18 and Sephiroth to be 27 by around the beginning of 2021
But now that it’s 2023 I’ve kinda aged Sayori up to be 20 and Sephiroth to be 29 and maybe a romantic relationship will no longer be as risky as time goes by