
I got 79 on my first Railway attempt since I wasn't paying attention enough and lost 6 out of my 12 Sinners during the final fight, but my second attempt went way better with me getting 38, 31 turns less.
First Stretch: KK Heath, KK Ish, Manager Don, Vampire Rodya, Vapire greg, Vampire Outis.
My buffs were.
- Refracted Mind: More Sanity is always nice, especially early on.
- Refracted Bleed: Helps with getting up Bleed on line.
- Refracted Poise: Not useful here but needed for the second stretch.
- Nebulizer: Not useful here but needed for the second stretch.
Second Stretch: BL Meursault, Butler Ryoshu, Full Stop Hong Lu, BL Faust, BL Yi Sang, Full Stop Heathcliff.
My buffs from the first section come into play here, I used my Golden Bough buff to halve enemy speed so Ryoshu could use Deep Breath on the second turn, allowing her to do crazy damage.
My buffs here were.
- Life or Death: More Damage for Ryoshu to clear through enemies, doing hundreds of damage to single targets
- Hp manipulation: Still need to not die
- The Lone Man: Needed for Manager don in section 3
Final stretch: Manager Don, Pointilist Yi Sang, KK Ish, Vampire Rodya, Vapire greg, Vampire Outis.
My buffs were.
- Refracted Lust: Extra damage for Yi Sang and Manager Don.
- Recourse Reaping: No other better option.
- Refracted Pierce: Extra damage for Yi Sang and Manager Don.
I'm pretty sure I could have shaved a turn or 2 more off of section 1 and 3, but that requires RNG, and I think a properly built Burn team could shave off 4~5 more turns off of Section 1 while getting the same time on section 3. South Section Liu Yi Sang is a big help here as he gives out Sanity really easily, and the Burn team's Faust is both powerful, and easier to justify in your opening six Sinners then her counterparts.
So I think 40 is perfectly doable, I just don't have a fully spun and leveled up Burn team.