the fate of all 2hus. new waifus are added. important roles are overtaken. not enough points to go around and old waifus are forgotten and thrust into the unknown!
Yeah, that's why Reimu and Marisa are constantly on top and half the SDM cast keep ranking in the top 10.
And anyone who debuted in HSiFS crashed and burned.
Nemuno did. Narumi still toppled folk like Ichirin and the entire fairy trio of light and also the newest moon bunny duo, Larva being slightly more popular than even her and Okina using her boss status to slink past many of the classics. Even so we are still in the late 40s in ranks at this point. There will always be absolute favorites, Fonzi. Usually those protected by being protagonists, specially Reimu and Marisa, or nostalgic value characters as the EoSD team.