To escape sexual assault by her foster parents in her hometown, Meru works as a caregiver in Japan. She lives a peaceful life until one day her hated foster parents appear before her. Just like before, Meru is raped helplessly, but she is fended off by the elderly man who was caring for her, who becomes her benefactor. This makes Meru want to care for the elderly with love, not as a job, and she begins to use her young and innocent body to repay the elderly for their kindness...