The decensor patch for Iku Iku Succubus can be downloaded from FAKKU's store. The link is below:

https://www.fakku.net/games/iku-iku-succubus-decensor-patch-english_1658268943

Installation instructions:

1. Download both IkuIkuSuccubus_DecensorPatch_V1.part1.exe and IkuIkuSuccubus_DecensorPatch_V1.part2.rar and place them in your Iku Iku Succubus install folder.

2. Click on IkuIkuSuccubus_DecensorPatch_V1.part1.exe and extract its contents into the folder. Confirm file replacement for voice.xp3 and data.xp3 when prompted.