Frontwing has launched an Indiegogo campaign for the newest entry in their Grisaia visual novel series, Grisaia: Phantom Trigger Vol. 3, coming to PC-via Steam on July 28.

The campaign is to allow fans of the series to pick up some physical goods along with game's western release. Usually these types of products are exclusive to Japan, but by using the Indiegogo platform, Frontwing can manufacture these items for the west.

The developer details the campaign further:

The purpose of this campaign is to make English physical copies of the game, as well as other related goods, including an Indiegogo-exclusive soundtrack CD, available to fans across the world. Most of these items would not otherwise be available for international purchase, so this is the perfect chance to get your hands on hard-to-find goodies and support the game in the process!

Grisaia: Phantom Trigger revolves around a class room of specially skilled assassins as they must complete missions for the government while attempting to live a normal lifestyle. Each character has a unique skill and personality that adds to the overarching story, as the characters must rely on each other to get through some tough situations.

Details from the the Indiegogo page about Vol. 3's stories (may contain spoilers):

While Rena and Maki recover from their injuries, the other SORD members jet off overseas for a school trip. Within moments of their arrival, though, the Mihama gang are pulled into a manhunt for a SORD deserter, assisted by students Sylvia and Velvet of St. Aile's International School.

Tohka's the star of the show this time round, but she's wrestling with her own issues – old memories of her parents, and a promise to a friend that she wasn't able to keep...

DualShockers reviewed Grisaia: Phantom Trigger Vol. 3 and thought it was a great introduction, but also that the shorter volume releases could be hurting the beloved Grisaia series.

You can check out a preview of the physical goods available below: