Let me tell you about the most chaotic, confusing, and surprisingly rewarding quest I’ve ever tackled in Genshin Impact 2026: Down in the Dumps. If you’ve just wrapped up Transplanted From "Yesterday" to "Tomorrow" and are staring down this sewer-dwelling nightmare, trust me—you’re not alone in panicking. I spent three hours stuck in the Shadow Realm, fumbling with key cards and fighting Leshys, and I’m here to save you from that same fate. 
First, let’s get the basics straight: this quest locks you into the Shadow Realm, which means no swapping your team, no busting out your fancy elemental bursts, and no gliding or dashing like a pro. You’re stuck with the Traveler’s guns and basic weapons—talk about a rude awakening after breezing through the last quest with your level 90 main. The goal? Escape the sewer and get back to the surface. Sounds simple, right? Wrong. It’s a maze of key cards, water levels, and gates that love to jam on you.
Let’s break this down step by step, so you don’t end up like me: wandering the sewer for 45 minutes wondering where the blue key is.
Step 1: Escape the Sewer’s First Maze 🚪
As soon as you spawn in, head deeper into the sewer and unlock the Teleport Waypoint—you’ll thank me later when you have to backtrack. Next, double-press the run button to slide through the first gate (pro tip: don’t panic if it feels like you’re stuck; the hitbox is weird). Then, aim your weapon at the sparkle sigil on the wall to pull yourself up—this is your first taste of the grappling mechanics you’ll be using nonstop. 
Grab the Exquisite Chest along the way (free primogems, duh) and keep going until you find a Metal Control Wheel. Place it in the Rotary Mechanism to open the next gate—only for it to get stuck halfway. Classic. Slide down the gap, and you’ll end up in a water-filled room. Paimon will point out a wooden plank; hop on it, then build a Grappling Gun to swing to the other side. If wooden boxes block your path? Shoot them—easy peasy. 
If you can’t jump to the next platform, build a Cube or Floating Platform Prime Ice Construct to give yourself a boost. Eventually, you’ll reach the Control Room—read the Sewer Entrance/Exit Guide on the table to keep the quest moving. Now comes the first key: the Blue Key Card.
Step 2: The Blue Key Card Chaos 🟦
Interact with the Control Console next to the open gate to grab the Blue Key Card. But wait—taking it makes the gate slam shut. No problem, right? Just use the same key on the other console to open it. Enter the new room, only to realize you still need the key to get back. So you head back to the first console, take the Blue Key Card again—and the gate jams. Perfect. Slide through the gap, and you’re back on track.
Next, insert the Blue Key into the console by the water. This drains half the water, and the Eye of Graeae marks the White Key Card on your screen. Take the Blue Key out, head down to the closed door, and insert it to open the door. But here’s the catch: the water starts rising again as soon as you take the key out. Move fast—if you’re stuck on the wrong side, you’ll have to wait for the water to rise high enough to jump to your target. 
Step 3: The White Key Card 🟦
Head into the new room, grab the White Key from the console, and loot the Exquisite Chest. Build a Grappling Gun to open a route out—you’ll end up near the starting point. Follow the path back, use the ledges on the right to reach the console by the water, and insert the White Key. Now that both Blue and White Keys are in place, the water drains completely. Hallelujah! No more waiting for water levels to rise.
Step 4: The Red Key Card and Leshy Fight 🟥
Head down the now-drained path until you find a gate you can slide under. The Red Key is on a platform, marked by the Eye of Graeae—aim at the blue sigil to pull yourself up. But as soon as you grab the key? A Leshy spawns. Beat it (remember, no fancy skills—just your guns and basic weapons), then use the Rotary Mechanism to open the gate. Don’t forget the Precious Chest along the way—you’ve earned it. 
Step 5: Open the Control Room Door and Escape 🚪
Head back up to the Control Room, take the Blue and White Keys out of their consoles, and insert all three keys into the Control Room door. It opens—finally! But wait, the Rotary Mechanism for the elevator is missing its wheel. Where is it? Hanging on a Leshy’s head. You can’t climb up, so shoot the glass container holding the Leshy to free it, beat it, and grab the Sewer Lift Control Wheel. 
Go through the gate, loot the Luxurious Chest (yes, Luxurious—worth the chaos), use the elevator to exit the sewer, and follow the path back to the surface. You’ve done it! The quest completes, and Back on One’s Feet starts right after.
Let’s be real—this quest is designed to make you frustrated. I spent way too long panicking when the water rose, or when I forgot to take the Blue Key back, or when I couldn’t find the Red Key. But when you finally step back onto the surface, sun on your face, and see that quest complete pop-up? It’s the best feeling. Just remember: take it slow, loot every chest, and don’t panic if a gate jams. You’ve got this. Now go enjoy the next part of the questline—you’ve earned it.