Guide to beating Dim Cave:
Party Composition (in this order): Bird, Goblin, Snake, You(Equip Slash Skill), Wolf
Flower Fairy grinding takes too long, so I skipped it to make this team.
Needs Level 7 Lesser Devil Familiar level, and a few levels in stamina to use your slash (takes about 2-3 hours of afk?).
When you're fighting the orc, place your habit points into Energy Recovery.
This will just barely be able to beat the orc, but there's some rng involved with the damage and the first few times I fought the orc it ended with 2 hp remaining. Just immediately try to fight it again if you fail, and once you defeat the orc you can equip your new title and have 100% winrate vs the orc.