A married woman named Ichibana Mogami leads a mundane life until she finds herself unable to shake her past fascination with BDSM. Despite being happily wedded, she secretly maintains membership at an SM club under the radar of her husband. One day, while working at the club, Ichibana discovers that one of her clients happens to be her neighbor whom she exchanges morning greetings with every day. As they continue their playful interactions filled with mutual attraction yet denial, they eventually find themselves...