NAGAHAMA Sachiko

Natsuhime's parents were killed on the night of her 16th birthday. Luckily Natsuhime's life is saved by a man, but she doesn't realise that what awaits her is a life of confinement with her brutal savior. Moreover, Natsuhime finds herself in the depths of despair when she learns that she is the one being accused of killing her parents. Five years later Natsuhime's revenge arc begins in order for her to regain her life back.

Married at the age of 19 for 10 years, Murasaki had established herself as Miss Ryuseikai, which occupies the entire Higashi-Shinjuku area. However, her beloved husband, Ryusei Takasaki, the first president of the Ryusei Kai, suddenly passes away. In her grief, Takasaki's last will and testament was something she could not believe... (google translated)

Tokyo, September, 1971. The bodies of a wealthy couple, Rintaro Oki and his wife Junko, are found in their house. At first, police suspect that Oki's nephew Takahiro is the criminal, but a friend of his, Akihito Sugiura, gives him an alibi. After that it's concluded that Oki's driver Shuuji Tazawa is the criminal. Tazawa commits suicide one week later and the case is closed. 33 years later, December 2004. Hoshi Sugiura is engaged to the receptionist of the company, Keiko. Later a happy Hoshi comes from the party to home and discovers his father Akihito's hanging corpse. The police conclude that he committed suicide. Hoshi recalls his father having said the morning of that day something about reading an old diary. The content of the diary tells the story of how he gave an alibi to Takahiro concerning a crime in the house of a married couple 33 years ago. When Hoshi question a friend of his father, who came to make a visit of condolence, closely about that incident, he advised him to forget it if he wants to be happy. Later he receive a phone call from his fiance shouting "Help!" He goes quickly to her house and finds her near dead after being assaulted. Hoshi thinks the cause of his father's death is related to that past crime and begins to examine that time's newspapers in the library. He obtains proof that his father's death is a murder and is determined to expose the crime. He receives a threatening call and later is abducted, receiving a brutal assault from yakuza henchmen, with his male function being lost. One year later, November 2005. Henchmen of the Kuroishi yakuza clan gets killed by a beautiful woman, and a butterfly specimen is left near the bodies. Hoshi is now living in the house of Keiko, a transvestite that helped him after the assault, and lives as a woman by the name of Kaoru. The revenge of Hoshi is just starting. (from mangaupdates)

Yumi, a 37-year-old housekeeper with zero male experience, is reborn as a beautiful 20-year-old girl! One day, Yumi Maenon, a 37-year-old housekeeper who died in an unfortunate accident, found herself reborn as a 20-year-old girl named Rumiko Ozawa. She may look young, but she is a veteran and professional at her job. However, at the first house she visits as Rumiko, she encounters an inexperienced situation in which the client's son falls in love with her...? (google translated)