Adesugata Junjou Hanafubuki

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)