Not asking for a Nx item hear me out. Players that managed to complete olaf questline get to have a bonus quest for obtaining auto ACP, preferably a torture bonus quest that involves grinding and completing jump quests.
that's a bad idea. why is that a bad idea? cause you will use an INSANE amount of ACPs. why is that? because many bosses can slow/weaken/seal and etc.. imagine you will use an auto-acp for every single one of them? you'd need like 2k ACPs for HT.