30-year-old masochistic married woman Tsukasa Nagano cannot satisfy her masochistic desires through normal sex with her husband and becomes aroused by spanking. Showing off her beautiful ass, Tsukasa gets spanked by a group, growing increasingly excited and cumming repeatedly while being filled with creampie loads. Bound in a crawling position, she is tormented by multiple vibrators and electric massagers, cumming uncontrollably while being splashed with semen and mentally broken down through urolagnia. Used in a threesome with candles and whips, she is fucked mercilessly until her identity as a married woman completely collapses.