We have an anime adaptation of the Grisaia: Phantom Trigger films According . (to the announcement, the animation is being done by Bibury Animation studio Gotoubun no Hanayome, Azur Lane).
The goal of the film production is to adapt all volumes of the visual novels into anime.
The first two Grisaia: Phantom Trigger The Animationpremiered in March 2019, while the third, titled Grisaia: Phantom Trigger The Animation – Stargazer, premiered in November 2020.
Via: Official Website