After you got all 20 effects, a door will appear in Yomika Room in dream, there have 20 stands that let you drop your effects to achieve the endings.
Effects Guide
Kingfisher
Go to Jade World and find a kingfisher's beak.
Lantern
Go to Wall's World and walk north-east, you will reach a big blocked area with a small path. Walk into the path and go into the door in it to arrive at a fork in the road, go right to reach the Ghost Lantern place. Find the Lantern on the north.
Erhu
Go to Jade World and find a small building, go in avoiding the chasers, then climb the stairs down to the City. Go west and find a path which will get darker as you approach further into it. It will lead you to a room, find the Erhu in it.
Dragon
Go to Wall's World, go to north until reach two parallel walls. Walk between them and you will see a door which will lead you to the Brown Staircase, walk to the left exit and arrive at Monochrome World A. Find a staircase that brings you to the Monochrome Staircase, each time you reach the fork in the road you go [right, right, down] and arrive at the room with the Dragon. Go into the Dragon's mouth, there will be two Dragon Intestine entrances, choose the right one. In the intestine, each time you reach the fork in the road you go [up, left, up, right]. You will arrive at the room with the Dragon effect.
Long Hair
Go to Hair World, go north until you reach an area with a big piece of hair, follow it to north west you will find a blue gate. Go through it and arrive at a cross road, go right to the Hair Slum. Go right until you reach the Long Hair effect.
Kuroko
Go to Water World and find an entrance to the Playground, go down the stairs, then go into the second door to reach the Sewers. Go through the door in the Sewers, interact with the white shadow first, then get the Kuroko effect from the black shadow.
Sand
Go to Dark World and find two lances. Go between them and you will be warped to a place with a chaser, avoid it and go to the Desert. Go east then go south to find the sand man, then interact with him.
Bug
Go to Wall's World, go to north until reach two parallel walls and walk between them, you will see a door. Into the door will come to Brown Staircase, walk to the left exit and come to Monochrome World A. Find a staircase that brings you to Monochrome Staircase, each time you reach the fork in the road you go [right, down, right, down] to a part of Monochrome World A and arrive to Bug Forest. Go straight right until you find the Bug effect.
Kitsune/Fox
Go to Hair World, go north until you reach an area with a big piece of hair, follow it to north west you will find a blue gate. Go into the blue gate and come to a cross road, go down to the Snow World. Find a hole on the ground and you can find the Fox effect.
Sea Turtle
Go to Wall's World, go to north until reach two parallel walls and walk between them, you will see a door. Into the door will come to Brown Staircase, walk to the left exit and come to Monochrome World A. Find a staircase that brings you to Monochrome Staircase, go down the exit near the entrance and arrive to the unreachable mural in Hair World, interact to the npc and you can find the Sea Turtle effect.
Monster
Go to Jade World and find a small building, go in avoiding the chasers, then climb the stairs down to the City. Go to the south part and arrive to the station, go into the door with no sign and interact with the robot on the bottom, go back to the station and ride the train. Wait in the train until the scenery stop moving then arrive to the Parasite Forest, walk to the south and find the Monster effect.
Mask
Go to Cone World and find a statue that brings you to the Pink Path. Find the exit in Pink Path and come to Street, go straight north and find the entrance to the Mask temple. At the fork in the road you go left, at the end you will find the Mask effect.
Tengu
Go to Water World and find a statue to the Crow's Path Way, then come to Tengu Torii. Go into the Torii and go straight up until you reach a house. Go into the house and you can get the Tengu effect.
Halo/Angel Hoop
Go to Dark World and find two lances, go between them warp you to a place with chasers, avoid it and go to the Desert. Go to the west side desert and go between the fences that bring you to the Village. Go north to the ghost town and enter the Dark Department, each time you reach the fork in the road you go [right, down], the Halo effect is in the room.
Eye
Go to Wall's world, go to north until reach two parallel walls and walk between them, you will see a door. Into the door will come to Brown Staircase, walk to the left exit and come to Monochrome World A. Go to south west and enter the white entrance, you can find the Eye effect.
Ghost Fire/Soul
Go to Water World and find a entrance to the Playground, go down the stair, go left and enter the door to the Docks. Go up and find a door that brings you to the Green City, go left side you will find a stair down to Flooded Underground. Go to south east to the locked door, use Long Hair effect to break it, then go to the bottom entrance, the Ghost Fire effect is in the room.
Pillar
Go to Hair World and find two parallel murals, walk between them, they will bring you to the Ancient Path, walk straight right to the Dungeon. In the Dungeon you go to north east and walk a grass bridge to the other side of dungeon, then go to the middle exit to a room that has Pillar effect.
Oni
Sleeping on Yomika's Dream Bed will have a chance to transport you to the Inner City, go to the left door to the Train II that leads you to the Oni Field, you can find the Oni effect in the cave.
Spider
Go to Jade World and find a small building, go in avoiding the chasers, then climb the stairs down to the City. Go to the north east part you can find a door to the Monochrome World B, then find a jellyfish that warps you to the Aquarium. Go to the middle there has a stair, go down you can find the Spider effect.
Mold/Mildew
Go to Jade World and find a small building, go in avoiding the chasers, then climb the stairs down to the City. Go to the north east part you can find a door to the Monochrome World B, then find a jellyfish that warps you to the Aquarium. Go to the south exit, and go into the middle hole to the Moss, then go north to the Dusty House. Climb to the second floor and enter the right door, the Mildew effect is on the balcony.
Events Guide
To unlock the ED1, you need to achieve events to get more than +20 progressing point. Each event gives +1 progressing point.
Monochrome Graveyard
In Monochrome World B, there is a monochrome graveyard and a sleepy man face scenery. Interact with the grave and it will change the man's face.
Sea Anemone
Between the Aquarium and Moss, there is a small hole that has a big sea anemone. After seeing the sea anemone Yomika will be forced to wake-up.
Secret Scenery
There is a secret scenery behind the Spider effect, you need to use Long Hair effect to open a hole to enter.
Tengu Flight
Walk to the right from Moss will come to a gray building, go through many rooms to the rooftop, where you can have a flying event like Yume Nikki's Witch Flight by using the Tengu effect.
Port Shadow
There is a random event in which a shadow appears at the ocean scene in the port.
Guard Room
There is a random event which the guard room in the dark forest becoming messy, and on the top has a hole that can leads you to the train track with the guard's dead body.
Chaser Mirror
Near the Pillar effect in Dungeon, there is a room that has a chaser in a mirror, when Yomika wants to leave the room, a chaser will pop out from the mirror and go into Yomika's body.
Turtle Swimming
Go to the exit of the Blue City will come to a sinking rooftop like gray building. Using Sea Turtle effect can have turtle swimming event.
Boy in the Playground
There is a random event which a boy sitting at the swing. He will not appear again after you kill him.
Scary Face Poster
There is a random event which a laughing scary face poster appears at the alley in playground. Using Long Hair effect will make it opens its mouth and can lead you to the Aquarium.
Clock Tower
Go into the first door under the playground leads you to the clock tower. You go by elevators and interact with the clock on the top will start a full screen event.
Yomika's Dream Room
Go into the big hole in the Hell will lead you to Yomika's Dream Room. Go down the cave and go right until you see a dead chaser, Yomika then will start to cry and be forced to wake-up.
Dark Apartment Rooftop
When you arrive the top of the Dark Apartment, a chaser will stand by the gap in the fence. Interact with it to make it push Yomika down to the cage full of chasers.
Transform Into a Chaser
There is a place with a huge hole which between Village and Teleport Temple where you need to use the Bug effect to enter. Go into the huge hole, Yomika will be transformed into a chaser and won't be able to use effects. You can only leave this place by waking up.
Deadly Cactus
There is a room which has a big cactus with eyes in Desert. If you try to leave this place, Yomika will be stabbed to death with cactus needles and will be forced to wake-up.
Monochrome Girl
There is a monochrome girl live in the villa in Monochrome World A. After killing her a door appears in the wall, it leads to a room with a monster. The screen will start to have sand storm and you'll be forced to wake up.
Digestion
There is a room in the Dragon Intestine that has monster. Entering the room will cause eyeball monsters to start chasing Yomika, after every single eyeball monster touches Yomika, she will warp to a blocked area and start to be digested, then she will be forced to wake up.