A dynamite body and a masochist! Kunii Sunao's first bondage work! The humiliation and domination caused by bondage, and the sexual excitement that comes with it, expand his innate masochism and he gains pleasure. Sunao is immersed in the pleasure of bondage and experiences catharsis. His first bondage sex, legs-high bondage, deep throating while tied up in a straw mat, and threesomes while suspended from bondage! Even though it's his first time, he's bound all the way through!