The only project she has been listed in for recent years is "Otona no Kisetsu" (Season of Adults) which is a 2022 Japanese TV series. This series is also known as "The Season of Adults" in English.
There is a possibility that Sachi Kokuryu has been in other projects, but her name hasn't been publicly listed or her roles haven't been significant enough for them to be widely documented.
If you're looking for more information on Sachi Kokuryu's filmography, you can try searching for her on IMDB (Internet Movie Database) or Japanese movie databases.