I have a pre-patched CIA for MHXX V1.2.0 eng UI V4:
https://gbatemp.net/threads/ntr-cheats-plugin-ported-from-gateshark.427187/page-167#post-7540842
https://gbatemp.net/threads/ntr-cheats-plugin-ported-from-gateshark.427187/page-167#post-7540842