/jp/ - Otaku Culture

>>20544635
use "Only a Single Heroine"

also make sure you hit enter in search first (empty) then click this (Visual Novel Filters)

For some reason the site is wacky and if you don't you do it this way or similar to this way you can't actually multi tag search. So basically

(non-)blood-related sister heroine (whichever you want, shouldn't choose both)
Only a single Heroine

and as a bonus go into "Language" and select Japanese to get rid of garbage