The Grisaia franchise is getting another major project as part of its 15th anniversary. Good Smile Company and Frontwing Lab have announced Grisaia no Shin Kajitsu: Shuuketsu no Hyakka (グリザイアの新果実 -集結の百果-), an all-new adventure game scheduled for 2027.
Rather than existing separately from the upcoming mobile project, the new game is directly connected to Grisaia: Shuuketsu no Hyakka. It is described as a fully voiced new story that complements the smartphone title, bringing Yuuji Kazami and familiar heroines together with six mysterious girls claiming to be his daughters.
Quick Summary
- Title: Grisaia no Shin Kajitsu: Shuuketsu no Hyakka
- Japanese title: グリザイアの新果実 -集結の百果-
- Franchise: Grisaia
- Type: ADV / novel adventure game
- Status: officially announced and entering project production
- Announcement date: September 1, 2026
- Release window: 2027
- Specific release date: unannounced
- Platforms: unannounced
- Price: unannounced
- Languages: unannounced
- Age rating: unannounced
- Story format: completely new story
- Voice: announced as fully voiced
- Story relationship: complements the mobile game Grisaia: Shuuketsu no Hyakka
- Context: Grisaia 15th anniversary project
- Returning protagonist: Yuuji Kazami
- Returning characters: familiar Grisaia heroines
- Major new characters: six girls claiming to be Yuuji's daughters
- Origin of the girls: approximately 20 years in the future in the linked project's premise
- Scenario: Frontwing
- Scenario: Ruisu Nagata of Storyberry
- Character Design: Akio Watanabe
- Original Art: Akio Watanabe
- Production: Frontwing
- Production / Distribution: Good Smile Company
- Announcement partners: Good Smile Company and Frontwing Lab
- Copyright: Frontwing / Good Smile Company
- Related game: Grisaia: Shuuketsu no Hyakka
- Related game's platforms: iOS and Android
- Current related-game release target: 2026
- Six girls introduced in the mobile project: Sakaki Yuuma, Suou Yuuki, Matsushima Ichiru, Irisu Serina, Komine Yukiho and Kazami Hifumi
- Mobile-game cast: Ikumi Hasegawa, Hina Youmiya, Aoi Koga, Maria Naganawa, Saho Shirasu and Hikaru Tono
- 2027 ADV cast: not separately announced
- New ADV trailer: unannounced
- Steam page: unannounced
- Console versions: unannounced
- PC version: not officially confirmed in the initial announcement
- Gameplay/system details: unannounced
Announcement and New Visual
A New ADV Designed to Complete the Shuuketsu no Hyakka Story
The most important part of the announcement is how Grisaia no Shin Kajitsu relates to Grisaia: Shuuketsu no Hyakka.
Frontwing and Good Smile do not describe the 2027 project as a straightforward port or conversion of the smartphone game. Instead, the official post calls it a fully voiced completely new story created to complement the mobile title.
The press release likewise says the two stories are linked. The new ADV therefore shares the same larger narrative foundation while delivering material of its own.
Exactly where its story sits in relation to the mobile game—before, after or between particular events—has not yet been detailed.
The Six Girls From 20 Years in the Future Remain Central
The premise connecting both projects revolves around six mysterious girls who appear before the familiar heroines and identify themselves as Yuuji Kazami's daughters.
According to the premise of Grisaia: Shuuketsu no Hyakka, they should exist approximately 20 years in the future, yet somehow find themselves in the present era.
The six previously introduced girls are Sakaki Yuuma, Suou Yuuki, Matsushima Ichiru, Irisu Serina, Komine Yukiho and Kazami Hifumi.
Their presence means the new story is not simply a reunion with Yuuji. Questions involving the future, family relationships, time displacement and the reason for their appearance remain at the center of the anniversary storyline.
Yuuji and the Familiar Heroines Are Returning
The September 1 announcement explicitly confirms the return of Yuuji Kazami alongside familiar heroines from the Grisaia franchise.
That places Grisaia no Shin Kajitsu closer to the established character line of the original series rather than treating it purely as a next-generation spin-off.
The announcement artwork also places Yuuji at the center of a group containing both familiar and newer characters, visually reinforcing the meeting of two generations.
The full cast has not yet been announced, however, and the existing voice cast should not automatically be assumed to be confirmed for the 2027 game until Frontwing says so.
Akio Watanabe Returns for Character Design
One major returning staff member already confirmed is Akio Watanabe.
He is credited with both character design and original art, maintaining a strong visual connection to earlier Grisaia projects.
The scenario is being written by Frontwing together with Ruisu Nagata of Storyberry, while Frontwing handles production.
Good Smile Company is listed for production and distribution, continuing the partnership behind the linked anniversary project.
Two Games Form Different Sides of the Anniversary Story
The smartphone game Grisaia: Shuuketsu no Hyakka was announced first as a major title for the franchise's 15th anniversary.
Its premise involves the six girls from the future appearing as a new Gaia Cult declares war on government organizations including CIRS and SORD. The group's leader uses the name Heath Oslo, while his silhouette is described as closely resembling Yuuji Kazami.
The 2027 ADV now adds another perspective to that setup. Because it is explicitly designed to complement the mobile story, information may be distributed across the two projects rather than simply repeated.
Whether players will need to finish the smartphone game before playing the ADV has not yet been stated.
The 2027 Game's Platforms Are Still Unknown
A key distinction should be made between the two projects: the platforms for Grisaia no Shin Kajitsu have not been announced.
iOS and Android belong to Grisaia: Shuuketsu no Hyakka and should not automatically be attributed to the new 2027 ADV.
The official announcement currently confirms only its ADV format and 2027 release window. Steam, Windows, Nintendo Switch, PlayStation and other possible platforms remain unconfirmed.
Pricing, editions, supported languages, system requirements and age ratings are also still pending.
Why This Matters
1) It is not simply a mobile-game port
The 2027 ADV is a new fully voiced story specifically designed to complement Shuuketsu no Hyakka.
2) Yuuji returns to the center of a new Grisaia project
The announcement directly confirms both Yuuji and familiar heroines alongside the newer generation.
3) The six daughters remain the core mystery
Their arrival from 20 years in the future connects the mobile game and ADV through questions of family and time displacement.
4) Akio Watanabe maintains the series' visual identity
His return for character design and original art gives the anniversary project a strong link to established Grisaia aesthetics.
Game Information
For now, the additional important information currently known includes:
- Grisaia no Shin Kajitsu: Shuuketsu no Hyakka is a completely new ADV in the Grisaia franchise
- the project was officially announced on September 1, 2026
- its current release window is sometime in 2027
- a specific release date has not been announced
- platforms for the 2027 ADV have not been announced
- pricing and editions remain unannounced
- no Steam page has been announced
- console support remains unconfirmed
- language support outside Japan has not been announced
- the official announcement describes the story as fully voiced
- the 2027 ADV's cast has not been separately announced
- the game is directly connected to the smartphone title Grisaia: Shuuketsu no Hyakka
- the official post specifically describes it as a story complementing the mobile project
- Yuuji Kazami is confirmed to appear
- familiar Grisaia heroines will also return
- six girls claiming to be Yuuji's daughters remain central to the story
- the six girls originate roughly 20 years in the future within the Shuuketsu no Hyakka premise
- they are Sakaki Yuuma, Suou Yuuki, Matsushima Ichiru, Irisu Serina, Komine Yukiho and Kazami Hifumi
- their announced mobile-game voice cast consists of Ikumi Hasegawa, Hina Youmiya, Aoi Koga, Maria Naganawa, Saho Shirasu and Hikaru Tono
- those cast credits have not yet been separately confirmed for the 2027 ADV
- Frontwing and Ruisu Nagata of Storyberry are handling the scenario
- Akio Watanabe handles character design and original art
- Frontwing handles production
- Good Smile Company handles production and distribution
- the project forms part of Grisaia's 15th anniversary
- the franchise began with Grisaia no Kajitsu in 2011
- the linked Shuuketsu no Hyakka mobile title is being developed for iOS and Android
- the current official anniversary site lists the smartphone project for release in 2026
- the mobile premise introduces a new Gaia Cult declaring war on CIRS, SORD and other government organizations
- its leader calls himself Heath Oslo and is described as having a silhouette resembling Yuuji
- no dedicated trailer or gameplay footage for the 2027 ADV was announced in the initial reveal
- combat systems, route structure, choices, save functions and other ADV systems have not yet been detailed
- the announcement is available through the Official X Post
- project updates are available through Grisaia: Shuuketsu no Hyakka Official X
- anniversary information and the mobile premise are available through the Grisaia 15th Anniversary Official Website
- the publisher announcement is available through Good Smile Company / PR TIMES
- Frontwing information is available through Frontwing Lab
- Good Smile's game catalog is available through the Good Smile Game Official Website
Closing
Grisaia no Shin Kajitsu: Shuuketsu no Hyakka expands Grisaia's 15th-anniversary storyline into two connected sides: a smartphone game built around Yuuji's six daughters from the future and a new fully voiced ADV designed to complement that narrative in 2027.
Most release details remain deliberately open. Platforms, the exact date, price, ADV cast, trailer, gameplay systems, editions and language support all remain unannounced.
- Grisaia: Shuuketsu no Hyakka Official X — Official Grisaia no Shin Kajitsu Announcement, Full-Voice Story, and 2027 Release Window
- Good Smile Company / PR TIMES — Official New ADV Announcement, Staff, Story Link, and Release Window
- Grisaia 15th Anniversary — Official Smartphone Game Premise, 20-Year Future Setting, and 2026 Release Status
- Grisaia 15th Anniversary — Original Shuuketsu no Hyakka Production Announcement and Smartphone Platform Information
- Famitsu — Six Daughters, Character Details, and Original Smartphone Game Information
- Dengeki Online — Officially Announced Voice Cast for the Six Daughters in the Smartphone Game
- AUTOMATON — New ADV Announcement, Staff, and Relationship With the Smartphone Story
- Denfaminicogamer — September 1 New ADV Announcement and 15th Anniversary Context
