Question regarding the Purification ending
I'm on NG+ and I already did all the requirements for the Purification ending, currently fighting Owl Father in Hirata Estate for the 20th time with no luck, fight is super annoying. Can I continue unlocking the Fountainhead Palace to finish collecting the rest of the Lapis Lazulis I need to complete the Prosthetic upgrades and then come back at a later time and continue fighting Owl Father?