Exchanging husband and wife to regain the feeling when having sex with Rui Hitzuki

Rui and her husband have been married for a while, but she and her husband do not feel satisfied when having sex with each other. Once when she was raped by another man, she realized she had a special feeling for another man. Then one day her husband realized and suggested that she exchange spouses with someone else to regain her previous excitement...

Exchanging husband and wife to regain the feeling when having sex with Rui Hitzuki