The Past is the Future is a side quest series in Wuthering Waves. This includes The Past is the Future: Introduction and The Past is the Future: Continued. Completing the quest series will also give the trophy “Future is Here.” For both quests, you will receive the following rewards:

500 Union EXP

40 Astrite

2 Advanced Resonance Potion

2 Advanced Energy Core

18000 Shell Credits
How to Begin The Past is the Future: Introduction Side Quest
The first part of the side quest is found in the western part of Jinzhou. You will see Shixia and a dog named Pudding under a big tree. She is trying to find something, and she’ll ask you for help. This would mark the beginning of the quest.
The Past is the Future: Introduction Walkthrough
Use Sensor
Bring out your Sensor (holding Tab) and press T at the same location to start looking for the gift. Using the Sensor would trigger dialogue with Shixia. You’ll move on to the next part.
Go through waterfall and arrive at first tree
Follow the side quest marker through the waterfall until the goal changes to “Arrive at the first tree following the guidance.” Keep following the marker, and you will see Shixia under the tree. Approaching her triggers another conversation.
Find clues
Pudding will guide us through finding clues. The first one under the tree contains a Supply Chest. The second clue will be Shixia’s report card from her first test as a child.
Proceed and make a dish
After the talk with Shixia, you will be going up the mountain. You can run up to it until you reach a camp with two chairs, a campfire, and a camp stove. Approaching it will trigger a dialogue with Shixia. You, Shixia, and Pudding will be resting her. You will then make a skewer (Jinzhou Skewer) and a fish soup (Milky Fish Soup) to proceed with the quest.
Ingredients
Jinzhou Skewer: 2x Raw Meat, 1x Lemongrass
Milky Fish Soup: 1x Fish, 1x Angelica, 1x Perilla
After cooking, sit on one of the camping chairs with the side quest marker. This will trigger another dialogue. After the conversation with Shixia, continue climbing up the mountain.
Continue finding clues
Upon investigating the first clue, you will encounter some TDs. Defeat them and proceed with the quest. The second clue under the tree reveals a Supply Chest. The third clue is behind a huge, breakable rock.
You’ll need to use your Levitator (hold Tab) and press T on the rock with glowing crystals (beside where the second clue was). Once you have it, throw it on the rock.
Keep climbing the mountain while following the side quest markers. At the end, you’ll see a small heart-shaped pond.
Solve the puzzle and continue climbing
(No actual solving needed). The places where you need to be will be marked; just interact with the position. You would have to “Dig” at the second marker, and you’ll find photos and a letter.
After speaking with Shixia, you will continue climbing up the mountain. You will reach another tree, triggering a conversation. This marks the end of the The Past is the Future: Introduction side quest!
How to Begin The Past is the Future: Continued Side Quest
Make sure that you finished The Past is the Future: Introduction first. The starting location is south of Jinzhou as you will be climbing the West Hill. You will need to talk to Shixia to start the side quest’s continuation.
The Past is the Future: Introduction Walkthrough
Climb up the West Hill
This involves a lot of running, climbing, small gliding, grappling, and sprinting on walls. Follow the side quest marker as best as you can. Nearing the top of the mountain, you would encounter grapple generators, so use your Grapple (hold Tab) and press T. Once you reach the Summit, you will talk with Shixia.
Open object left by Shiyu
Interact with the nearby object and you will have a short conversation with Shixia. This marks the end of The Past is the Future: Continued and The Past is the Future side quest series!
Completing The Past is the Future: Introduction and The Past is the Future: Continued will earn you the “Future is Here” trophy!

How to Begin The Past is the Future: Epilogue Side Quest
There seems to be a daily reset before this side quest becomes available. You can find Shixia behind the theater in Jinzhou. You will simply talk with Shixia and you wouldn’t have to do anything else.
After talking with Shixia, you will get the “Jinzhou Sunrise Photo” from Shixia which is another Quest Item. This can be found in the Valuables in your Backpack (press B).