Three years into their marriage, the husband suddenly falls ill and his wife Yui diligently nurses him. His younger brother Hiroshi, who secretly admires Yui, worries about their future but can do nothing... One day, as usual, Hiroshi visits and catches Yui attending to her husband's sexual needs. Hiroshi watches in fascination. Furthermore, unable to have sex with her husband, Yui comforts herself alone in the room. Hiroshi cannot suppress his rising desires...
