That's how it's marketed at least. Not sure if it's related to her batte with cancer or previous comments she made about wanting to focus more on her career as a singer.
TUNGUSKA BUTTERFLY casts her as Saki, a former elite soldier and professional thief who is now just staying afloat with minor jobs. When she spots Mari, a young girl stealing from a store, a connection is formed. Turns out the young girl's mother is shacking up with a yakuza who of course is a complete psycho. When Mari's life is in danger, she needs Saki's help to survive. Directed by Akira Nobi, a relative unknown who previously contributed to THE ABCs OF TETSUDON.
Apparently Asami is really good in it but the film itself is mediocre at best. The reviewer is also clearly unaware that this was her final acting role.