UMSO-587 Immovable!! 53 Flat-chested Women in Cowgirl Position with Almost No Shaking (2025) featured a cast of 5 tracked actors. Of these, 5 (100%) are still alive today. The oldest surviving cast member is Seira Hoshisaki, age 32. This film starred Seira Hoshisaki and Yui Kasugano.
100% still with us· verified cast
Survivorship
Cast Reunion Index: 100% still living
Cast5 members
| Person | Character | Status | DOB | Age | DOD | Age in 2025 |
|---|---|---|---|---|---|---|
 Seira Hoshisaki (archive footage) | (archive footage) | Living | 30/10/1993 | 32 | — | 32 |
 Yui Kasugano (archive footage) | (archive footage) | Living | 11/10/1993 | 32 | — | 32 |
 Noa Eikawa (archive footage) | (archive footage) | Living | 25/12/1997 | 28 | — | 28 |
 Mitsuki Nagisa (archive footage) | (archive footage) | Living | 07/02/1998 | 28 | — | 27 |
 Rion Izumi (archive footage) | (archive footage) | Living | 27/07/1998 | 28 | — | 27 |