Tips:
- You should kill every single devil in the location - just continue to trigger the random encounters till a special message appears.
- After slaying a devil kind go to the Office and talk to the statue - you'll get an unique artifact. Weapons that are obtained in such a way can be assembled into the most powerful weapon in the game at the end of the route.
- You save color should become red after the chapter 1-1 and shouldn't change anymore for the entire run. If it did - you've failed the route conditions.
Guide:
Chapter 1-1: Kill all Barghests.
Chapter 1-2: Kill all Lampases.
Chapter 1-3: Kill Lucy and Empuse (you wouldn't be able to kill Hekate, unfortunately).
Chapter 2-1: Defeat the Mother till her encounters disappears, move forward and kill the catgirls, then return, read both documents (first and fourth screen) and go to the graveyard to kill the Mother for good.
Chapter 2-2: Defeat Akane till her encounters disappears, then go to the temple and finish her.
Chapter 2-3: Kill Nina. H͎̘̞̠e̟͚̘̺̠̻ͅr͕̪̖̲ ͎̳̞̭c̬̜r̭̥̝y̷͕̱̹͇i̗̮͠n̪g̖͓͍̹̕ ̪̻̙͇͡f͕̟̝̙͕̦͚a͚̻͕͝c̺̮̘e̴̳̭͖ ̯͈͇̟̺̮ͅi̻͕̠̦ͅș̸ ҉̰so ̜̺̖͇̩͇̳c͎̫͖̮u̠̫̱ţ̗͕e̹̳̯͖.̜͙̣͕.͓̭̙͕̪͇̮.̮̯̹
Chapter 3-1: Kill all the lesser Echos, then read four notes (near the pumps), go to the reservoir and use the bag to poison the water, thus finishing the job. After that move forward and slowly kill Sphinx (she will rise several times - just punch her in her face till she dies).
Chapter 3-2: Shoot the human pilot, then kill Archeny to obtain T̨̥̤͈̥͔͍h̡̘̼̭̩e̼͉͕̭ͅ ̨̱Ol͏̹̲͉̰d̰̱̗̩̭̮̻ O̯͓̖̯n͈̥̱͚e̮̝̹͓͖̺'s power.
Chapter 3-3: When the fight with Titanoboa starts guard against her first strike, then use the power you've obtained to annihilate her.
Chapter 4-1: Kill all Camazotzs, then do the Yuuma's job and murder Mikah.
Chapter 4-2: Kill Daji.
Final Chapter: Assemble t͕̀h̵̫͎e̤̣̝ ͓̦͉͢k͙n̬̙̟̭i̺̼̝f̮̱̗̣̗̘͝e҉͙͓̼ and defeat Hyakki Oni with the power of T̨̥̤͈̥͔͍h̡̘̼̭̩e̼͉͕̭ͅ ̨̱Ol͏̹̲͉̰d̰̱̗̩̭̮̻ O̯͓̖̯n͈̥̱͚e̮̝̹͓͖̺. Ignore her mumbling about being pardoned.
After that, watch the beautiful ending you've achieved. If you have any questions related to particular fights, find me on ULMF Discord server and PM me.