Ai Wakana, who has stubbornly refused anal sex even in her private life, finally lets go of anal sex with SOD! - Although she is embarrassed to see her anus on camera for the first time, she sheds tears when her anus is expanded. - What is the truth...? - First anal sex, first three-hole FUCK! - ! - The true nature of masochist awakens! - "My anus hurt...but it felt good (Heart)"