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?

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?