Cat Travel Notes, How to Get Good Luck? That's RP.

The lucky value in the pet panel has nothing to do with increasing luck, but it offsets the punishment of shooting. I used to add it when I took the right shot, but I don't think I added it after I changed it.

Add rp to go to the frozen ice and snow pub for divination, and you will get a buff effect at random. There is no other way.

Note that the only way to add luck is divination, and shooting is randomly generated in the game. In order to prevent hanging, you are sure to meet more monsters.