The Human Toilet Bill was passed with the aim of stimulating the sexuality of young people and overcoming the declining birthrate and aging population. Women who received the red paper were forced to become human toilet slaves. Yuri and Takeshi, childhood friends who live nearby, were close enough to still occasionally eat meals together at home. It was a long-standing daily routine for them to go to their respective schools while talking about trivial things. He treasures those times more than anything and puts an end to his daily life of unrequited love for Yuri.