If you do them a number of times, you get a familiar that can be the tiger, bear, or wolf (convert button) -Great Tiger Spirit Familiar, you get an item that absorbd damage for 8 hits (100%) - Valia's Unyielding Bravery, and a lifetap proc item for 4% of weapon damage to heal you - Spirit Drinker's Coating. Takes around 42 total turnins for all 3 (Total turnins - can do all on one NPC, or spread across the 3)