Smile and suffer! - ! - ! - Neiro Otowa, a neat girl who used to be an underground idol, appears on stage in ``Smiling Mouth Toilet'', an egotistical deep-throating work in which she is forced to endure with a smile no matter how much her throat is raped. - The dazzlingly pretty beautiful girl's expression becomes distorted as she is tortured deep inside her throat, but because she is a masochist, she continues to shed precious jewels from her eyes... - A beautiful girl who takes such minute torture as pleasure and continues to smile and enjoy the cock even in the midst of chaos. - What she caught a glimpse of at the end of such decadence was the appearance of Neiro, who had been reduced to a ``smiling mouth urinal'' that continued to smile even when the back of her throat was raped by a penis...