Nothing says Valentine like red hair. A fair number with glasses, too, and in the immortal words of Gracie Law, “Oh, that’s an extra to these people. It’s like leather bucket seats, it’s double the price.”
According to a scientific survey of Gelbooru, anime redheads have trouble keeping their clothes on and their orifices unexplored, which may explain some of their personality quirks. I added a few new negative keywords to cut down on the amount of this stuff I had to skip over. Also, fandoms may come and go, but apparently Ranma is eternal.
[Takanashi sisters come first, because Interviews with Monster Girls is awesome]