First otome game?

[Neomii]

you just reminded me, i played something like that too at the exact same time
it was a series of fun games made for free by an artist called pacthesis i think? i remember finding them on DeviantArt =v=
her games had a fun concept i enjoyed and that was using codes or finding secrets to get rich and super powers

Oh yes I found out it was by Pacthesis too!! I just found them on Twitter. My favorite one and the one I was referring to is the Future-Past one, the one where you can unlock a secret yuri route by playing certain piano notes. Their game's mechanics and secrets were so interesting.