Tsuma Netori: Ryoujoku Rinne 1

When Yuki, the devoted wife and dedicated P.E. teacher, falls prey to Hiroshi’s dark desires, she finds herself trapped in a twisted game of power and shame. Forced to submit to his every whim, she wrestles with guilt and despair, even as her body betrays her with reluctant pleasure. Torn between protecting her family and the degrading ecstasy he demands, Yuki’s torment spirals deeper—until she must either break or reclaim her shattered dignity.