Two things to reply here. For one, it IS possible to getting the best ending first run. However, it involves a lot of save scum, a lot of luck, and min-maxing all resources you have to gain as much stats and the best skills possible. For me, I like to run Moon Spirit Gathering, Infinite Will, Rose Piercer, and Sacred Beast. I don't remember how I got up to the point, but it is that build that helped me cheese and beat Gulos pretty easily.
For Fear of Death, it is a complex path that involves Shaya/the monster in the basement in the forest. First you need to get the potion, but ignore the fruit. Fight the monster and kill it using Capture. It will be in your inventory and when you use it, it will come out and take an apple. Continue to let it take apples until Female Lead decides to name it Shaya. When she does, go to the auction and talk to the other monster. When you do, a special conversation should happen and you'll get the Fear of Death Book.
Found the skill thanks, not as good as it seem
And yes, i've just reach the happy ending after delete old save, not too hard but freaking annoying rerolling so i gave up half way [point is, the time i need to reroll all of training is even longer than my whole run, lol], only go all out training after getting Elf Emblem, final stats are quite weak and i fall on final battle but that a good thing !?
Because i'm on good end path, the heroine 's been buff with 'unable to fall', ultimate skill set and epic music
Now waiting for conqueror mode or something [gotten all equipment and captures make me one hit everything]
PS: ur skill set is indeed very good for 1st run, a bit different from mine : Moon Spirit Gathering and Blood Spirit Harvest or Elf Song [Death Sun and Between Life and Death from 2nd run], Rose Piercer, and Sacred Beast or Infinite Will.
PS2: now only the burn skill from Shanta, In Heat from Delilah and Law of Causality from fortune teller
game is clearly unfinished on that part, there a point where i must choose between Ailoden and Delilah but Delilah give NOTHING while Ailofen give Many things
PS3: updated on strongest skill : Moon Spirit Fall ? exclusive temporary skill when revive on final battle on good path
damage scale on % hp but the more the stronger, it deal 52k for me, lol
Then again, with these OP skill, the game really need harder content updates