Quick answer: Complete the Slaying the Hero Holly quest first, then interact with Holly's Faded Bond at the Withered Greenhouse to start Timeline Shift Decision Holly. Collect both Camilo's Remnants, defeat the Retainer of Idris and Camilo Asturias bosses, then return to the Present to fight Hero Holly outside the Sanatorium.
Timeline Shift Decision Holly is one of four critical timeline quests in Code Vein 2 that must be completed to unlock the game's true ending, Miraculous Bonds. The quest takes place primarily in the Undead Forest region and involves traveling between time periods to restore Holly's bond and ultimately save her from her fate as a corrupted hero.
Unlock requirements
The quest becomes available after completing Slaying the Hero Holly, which itself unlocks during the Vanquishing the Heroes storyline. Once you defeat Hero Holly the Reaper and obtain Camilo's Remnants, Holly's Faded Bond appears at the Withered Greenhouse in the Undead Forest. Interact with this bond to begin the timeline shift.
Collecting Camilo's Remnants
Step 1: From the Withered Greenhouse in the Present timeline, interact with the Time Jump portal to trigger a cutscene with Lou. Turn around and speak with Monica to learn about Camilo's pathos.
Step 2: Follow the ray of light northwest toward the Ruined Town. Make your way to the center and defeat the nurse enemy, wielding a hammer. This drops Camilo's Remnant II and triggers a flashback sequence. Exit through the door at the end of the flashback.
Step 3: Follow the ray of light northeast toward the Sanatorium. Head to the fountain area and defeat the patient enemy wielding twin blades. This grants Camilo's Remnant I and starts another flashback. Complete the flashback and finish the dialogue with Lou and Monica.
Restoring the Faded Bond
Step 4: Return to the Withered Greenhouse with both remnants to restore Camilo's fading bond. This initiates a time jump into Camilo's frenzy. Interact with the monument to receive a trial from the Progenitor Idris.
Step 5: Proceed deeper into the area to encounter the Retainer of Idris, a mmini-bossni boss that blocks your path back to Holly's era. After defeating this outer world boss, walk to the next room and interact with the monument to complete the time jump.
Confronting Camilo Asturias
Step 6: Fast travel to the Sanatorium to meet Holly in her office. The conversation gets interrupted by sounds from Camilo's room. Take the elevator to investigate.
Step 7: Follow the signs of destruction to pursue the frenzied Camilo. Descend through the hole in the lobby to reach a lower floor and the underground facility beneath the Sanatorium. Exit toward the floating island filled with family memories.
Step 8: Complete the bridges and pathways leading to the westernmost island. Here you encounter Camilo Asturias as a mini-boss. You fight him within a memory, navigating a ruined version of the Sanatorium while connecting bridges and pathways to reach his boss room. Defeating Camilo triggers cutscenes that unlock Holly as a permanent partner.
Final confrontation with Hero Holly
Step 9: Return to the Present, where Monica asks you to save Holly permanently. Holly's cocoon transfers to the Sanatorium. Speak with Camilo for more context, then interact with the glowing item on the counter to trigger a flashback and obtain Lise's Hair Ornament.
Step 10: Head outside the Sanatorium and interact with the cocoon to initiate the final boss fight against Hero Holly. This is the main boss encounter for the questline and completes the Timeline Shift Decision Holly quest upon victory.
Quest rewards
Completing Timeline Shift Decision Holly grants several valuable items. You receive the Luxuria Bloodline: Camilo blood code, Idris's Talon weapon, the Lost Camilo item, Monica's Music Box, and Lise's Hair Ornament. Holly also becomes available as a permanent partner for the remainder of your playthrough.
Holly's Request side quests
After completing this timeline shift, additional content unlocks. Talk to Holly in MagMell during the 2187/2197 Free Exploration Era and select "Catch Up" to begin her request questline. These requests require Holly as your active partner and take place across multiple locations in the Undead Forest.
Holly's Request 1 sends you to the Snowy Mountain Amusement Park Mistle. Head toward the dungeon entrance, pass through the boss wall, and defeat the Bride of the Immortal. Completing this grants an extra booster slot.
Holly's Request 2 takes you to the Forest Complex Mistle. Travel east to the Housing Annex, enter the boss wall, and defeat another Bride of the Immortal.
Holly's Request 3 begins at the Abandoned Hilltop Church Mistle. Enter the dungeon, follow the right path to the boss, and defeat the Bride of the Immortal.
Holly's Request 4 starts at the Mountain Hamlet Mistle. Enter the dungeon, follow the wall on your right, and defeat the final Bride of the Immortal. This also rewards an extra booster slot.
Importance for game endings
Timeline Shift Decision Holly is one of four timeline quests required to unlock the Miraculous Bonds ending. The other three are Timeline Shift Decision Noah, Timeline Shift Decision Josée, and Timeline Shift Decision Lyle. All four must be completed before finishing the Luna Fraterna ending to unlock the "Rescue Lou" option on the main menu.
These quests never expire, so you can complete them at any point before defeating the final boss of the Luna Fraterna ending. If you missed any timeline shifts on your first completion, simply defeat the boss again after finishing the remaining quests to unlock the true ending path.
With Holly saved and her request chain completed, you gain access to one of the game's most versatile partners along with valuable booster slot upgrades that expand your build options for the endgame content ahead.
