Upbringing and hobbies

Hosachi was born on August 16, 1974, in Sakai City, Osaka Prefecture, Japan. Hosachi attended Wagoromo Gakuen （羽衣学園）. She is a Leo, blood type A, and 163 cm tall. Her favorite colors are bright red and light blue. Her special skills include violin, piano, and ballet. Her hobbies include Japanese dance and Argentine tango.

Hosachi entered the Takarazuka Music School in 1992 and in March 1994, she entered the Takarazuka Revue, ranking third.And entered the Tsuki Gumi.Between 1995 and 1996, she won three Shinjin Koen lead roles, one Bow Hall lead role, and two Toujo lead roles.Hosachi joined Hana Gumi in December 1996 and became a Musumeyaku Top Star.On August 5, 1998, Hosachi held a press conference to announce her decision to leave Takarazuka Revue. Finally, Sen Hosachi and her partner Maya Miki officially left Takarazuka Revue from the 1000days Theater on October 5, 1998.