Yoichi is very knowledgeable in sexual innuendos, slipping them into various jokes and threats.Compared to the other campers he is relatively tall and muscular, however, when compared to the general public he is below average in height, quite muscular, and his penis is large. Yoichi's color is most obviously purple, as shown with his scarf around his arm, and the shirt he often wears. His outfit is a bit different from the other and showing his animistic personality.