The ultimate butt battle featuring athletes with strong sex drives! 'Adult Women's 10,000m Race - Yoko Yamazaki,' 'Boy B Women's 3,000m - Haruka Miura,' 'Common Boy Women's 800m - Tsubasa Asahina,' and 'Trail Sprint 10k - Kyoko Nakajima'—these four athletes will take on enema and double penetration challenges with their anus muscles honed through track and field. The S-shaped intestinal walls that tighten when overly stimulated are the highlights. The Warring States Anus Quartet's anal trajectory in 5 hours, 10 minutes, and 21 seconds!!
