Ending 1: Complete the game without fully raising Lily’s affinity and choose to reject Adam’s offer
Ending 2: Complete the game with Lily’s affinity fully raised and choose to reject Adam’s offer
Ending 3: Complete the game with Lily’s affinity fully raised and choose to accept Adam’s offer
To raise Lily’s affinity, collect as many optional documents, memories, and side quest-related items as possible throughout the playthrough
To keep all endings available, make a separate save before the final choice with Lily’s affinity fully raised
To unlock all endings, use one save with low Lily affinity and another with max Lily affinity, then make both final choice outcomes from the max-affinity save