Renko and Mima are forgotten? Renko is rare but thats because shes in the outside world and Mima is pretty common in the fandom.
Interestingly enough, it’s seems that, in modern times at least, Renko is kinda getting remembered little-by-little, I mean, she even got to be on the top 20's in the popularity stuff, as for merry... She’s at the 40's...