The conclusion of the Liminal Border visual novel series. After the countless twists and turns of Part III, Itsuki's business is now a massive success, but all he can see is the need for revenge. Standing on the border between justice and evil, which way will Itsuki fall?
| Release date: | 04 Sep 2025 |
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| Last update: | 13 May 2025 (on Steam, public branch) |
| Developers: | Purple Software |
| Publishers: | 883, Shiravune |