START-588 A naive, ordinary wife is indoctrinated with NTR fetishes by a perverted couple with a swapping fetish! She falls into a trap of immoral pleasure after lending her out to a wealthy couple. (Aozora Hikari)

Gardener Yuta and his wife Hikari receive an invitation to "wife swapping" from the wealthy couple who work there. Yuta, who suffers from erectile dysfunction, is overcome with a powerful erection the moment he witnesses his beloved wife being embraced and wildly violated by another man. Awakened to immoral pleasure, the two sink into a quagmire of four-way sex, a mix of inequality and shame.