>>41591770The reason why Greninja was also a big Triumph among horny girls was also because of the sense of mystery. Jap Girls, and actually most girls enjoy mysterious and handsome males. So not only does he fit the typical pretty, charming and protective trope they love so much, but the fact that his face is partially covered also adds to the mystery, which is very appealing for girls.
Also, his tongue is prehensile, retractable and can stretch up to dozens of yards. He's all a girl would ever want. 