Husband 'Tomoyuki' and his younger brother 'Masayuki', along with his wife 'Yumi,' who has been on the frontlines of clinical practice, were running a small hospital together... Usually, the unreliable nurse 'Masayuki,' and the noble female doctor 'Yumi' supporting the hospital... Their relationship begins to warp due to a certain incident. By day, they are the 'commander' and the 'subordinate,' by night, the 'binder' and the 'bound.' 'Yumi,' who has noticed the hidden masochism, finds her perverse desires swelling, forgetting her guilt towards her husband as she becomes engrossed in bondage...
