Have you tried doing the quests at Gaffer Choo's? If not, you should try it, it's the only way to increase HR and you don't have to be a patreon member.
Viewing post in Lust Hunter: futunari edition 0.125.0 (2025/12/10) comments
I done his quest over and over and and there is no experience bar to even let me know that I am even makeing any progress unless I'm just not seeing it🤷♂️. But I have done the quest A LOT.. But come on I spent a whole day doing quest taken care of the same people over and quest over, I think a day is a little crazy because I took virtually no breaks bc it was a boring day and I just felt like I was getting nowhere, there's gotta be some kinda of bar to let us know we are making progress specially if it's going to take litteral real days to level up lol