back-to-back blue_eyes blush breasts censored convenient_censoring dress_shirt groin hair_ribbon hat konpaku_youmu konpaku_youmu_(ghost) medium_breasts multiple_girls navel nipples no_panties off_shoulder open_clothes open_shirt pink_eyes pink_hair ribbon riku_(rikkuru) saigyouji_yuyuko shirt short_hair silver_hair sitting skirt skirt_pull socks touhou triangular_headpiece wariza