START-588 NTR proclivities can be instilled in a perverted couple who enjoy swapping! Hikari Aozora becomes swamped with immoral pleasures after lending her naive commoner wife to a rich couple.

Yuta, a gardener, and his wife, Hikari, receive an invitation for a “wife swap” from the wealthy couple they work for. Yuta suffers from ED, but the moment he sees his beloved wife in the arms of another man, he gets a violent erection. The two, who awaken to immoral pleasure, sink into the quagmire of four-person copulation, where disparity and shame are mixed.