The Entrance to Tokyo quest is the next quest you will receive in Genshin Impact after you complete the quest called "Still Waters Flow". This questline occurs after stepping into the Enkanomiya region for the first time. The whole goal of the quest is to learn more about Enkanomiya and the new mechanisms that you will see around the place. This guide will show you how to complete the Entrance to Tokyo questline.
Go Deeper into the Cave
When you first get into the Enkanomiya through the portal, you will need to go into the cave and unlock the first teleport waypoint on the map. After unlocking the teleport waypoint, go deeper into the cave to explore. Head north, past the giant lotus, and climb the walls to get to the quest area. You will get a brief cutscene here and Paimon will tell you to go to the building to your right.
Go to the Building
After the cutscene, head north and turn right to go to the building. There is a teleport waypoint here that you can activate so you can come back at a later time. Once you get to the building, you will need to look for the five clues regarding the sigils. There will be five markers on your map but the first thing you want to do is to glide down the area to your left.
Look for Clues
Once you glide down to the lower area, follow the leftmost quest marker and you should find the first sigil on the wall. Activate this sigil.
Go down to the area with water and you should see a small rock in the middle. The second sigil is on a small rock. Activate the second sigil as well.
Now head for the central marker and you will see a rock surrounded by withered trees. The third sigil will be on this rock.
Head to the second to the right quest marker and climb the cliff until you see a rock with small stone slates and scrolls beside it. Activate the fourth sigil for the quest.
Lastly, go to the rightmost quest marker and you will see some Ruin Machine enemies here. The last sigil will be on the wall as seen in the image above.
Once you activate all the sigils, go back to the building and activate the mechanism near the entrance. A small cutscene will occur, revealing a path that allows you to go further into the area.
Investigate the Path
Go into the pathway and keep heading northeast until you reach the next quest area. There will be enemies on the path but you can simply avoid them if you do not wish to fight. Once you reach the quest area, head further east until you reach the huge door with a mechanism to its right. Interact with the mechanism and use the Key of the Moon-Bathed Deep to open the door.
Opening up the door will give you access to all the regions in Enkanomiya and complete the questline. You will also find a teleport waypoint that you can unlock on your right.
Completing the Entrance to Tokyo questline will give you a total of 200 Adventurer's EXP, 20,000 Mora, 30 Primogems, and 2 Hero's Wit. This quest will also fully unlock all the regions in Enkanomiya, allowing you to explore the entire area and unlock the other world quests available in the Enkanomiya region.