Credits go to Serberker, Sabaku.D.Tonio, Jinouga and Square Enix
Patch originally posted on https://gbatemp.net/threads/eng-lord-of-apocalypse.529461/

1. Download attached archive
2. Extract content (with Winrar or 7zip) to a convenient location (where your original iso is)
3. Download xDelta3 from here https://www.romhacking.net/download/utilities/928/
4. Inside the archive you just downloaded, copy "xdelta3-3.0.11-x86_64.exe" to the same location as the patch, the patcher, and the iso.
5. Rename it ("xdelta3-3.0.11-x86_64.exe") to xDelta3.exe
6. Make sure you have the original (clean japanese) iso in the same directory
7. Double click on "applyPatch.bat"
8. Drag (or type the name of) your iso and press enter
9. Drag (or type the name of) the patch and press enter
10.Enter the name you want for the new iso to be created (ie: LoApo_eng_patched.iso) and press enter
11.Wait for the patch to be applied
12.Enjoy!!!