Prosecutors sought on Thursday a two-year prison term for Hitomi Yoshizawa, a former member of the all-girl J-pop group Morning Musume, for allegedly injuring two people in a hit-and-run incident while driving under the influence of alcohol in September.

The 33-year-old admitted to the charges of causing injuries through negligence, hit-and-run and drunken driving during her first court hearing at the Tokyo District Court.

The court is set to hand down a ruling on Friday.

"I was immature as an adult. I feel sorry for causing trouble to many people," Yoshizawa told the court tearfully.

Asked by Judge Takao Sato how she intends to face the crime, Yoshizawa said, "I will never forget what I have done for the rest of my life."

(Supplied photo)

Yoshizawa ran a red light on the morning of Sept. 6 in Tokyo's Nakano Ward and hit a female cyclist and then injured a male pedestrian before fleeing the scene, according to the indictment.

Related coverage:

Ex-girl group idol Hitomi Yoshizawa released on bail after hit-and-run

Ex-pop group member left car accident site, ignoring witness call to stop

Ex-girl group idol Hitomi Yoshizawa nabbed over alleged hit and run incident

Prosecutors criticized Yoshizawa's behavior following the accident, saying her act of fleeing the scene after ignoring a witness' call to halt her vehicle "cannot be seen but an attempt to avoid criminal responsibility."

Her defense lawyer called for a suspended term for Yoshizawa, saying she pledges not to obtain a driver's license again even after the revocation is over.

Yoshizawa and two victims have already agreed to settle out of court, according to the lawyer.

Yoshizawa debuted in 2000 as a member of Morning Musume, known for its smash hit "Love Machine" released in 1999. She served as a public relations ambassador for her hometown of Miyoshi, Saitama Prefecture, after leaving the group in 2007.

She stepped down from the post and announced her retirement from the entertainment world following the incident.

She has had her driver's license revoked.