Akashi (証)/guide

Old Clothes (古着)
Enter the brown-and-white door. Go slightly south-west and interact with the green blob NPC. In the tile area, go north-west to a tile group shaped like a cross. Interact with the clothes in the middle.

or

Enter the red-brown door. Go right a bit and then up. Go between the two flesh lumps. Go right and you'll be teleported to the tile area. Go north-east to a tile group shaped like a cross. Interact with the clothes in the middle.

Club (棍棒)
Enter the silver door. Go south-east and interact with the gray orb. Navigate your way through the maze to a gray building and enter it. After entering the gray building from the maze, head all the way left until you see a space in the wall that has a light grey patch lining it. Enter it, and then head south-east until you find a door with blood stains on the wall. Enter it, and then interact with the dead Yugano leaning against the wall.

Grim Reaper/Death (死神)
Enter the red-brown door. Go up a bit from the door and go right. Step between the red crosses. Go up and interact with the sickle.

Clock (時計)
Enter the brown-and-white door. Go north-east and step between the two brown clocks. Go south-west and interact with the tiny clock on the ground.

Short Hair (短髪)
Enter the red-brown door. Go right a bit and then up. Go between the two flesh lumps. Go right and you'll be teleported to the tile area. Go north-east and between the two green objects. Go south to the next area. Go south-east and find a path on the right side of the wall (directly across from a large cube). Interact with the mushroom.

In the forest, go north-east to the next area. Go north-east again and between the two trees. Go up and enter the house. Go left to the next hall and enter the brown door at the end of it. A scene will occur and you'll get the effect afterwards.

Strange Bird (怪鳥)
Enter the red-brown door. Go right a bit and then up. Go between the two flesh lumps. Go right and you'll be teleported to the tile area. Go north-east and between the two green objects. Go south to the next area. Go south-east and find a path on the right side of the wall (directly across from a large cube). Continue south past the mushroom.

In the next area, ascend the steps and continue heading north, navigating past the houses. Head up through the large entryway and proceed to the end of the hallway. In the next room, interact with the figure with the bird wings.

Musical Performance (奏楽)
Enter the silver door. Go south-east and interact with the gray orb. Navigate your way through the maze to a flowery archway. Pass through it and carry on straight ahead. Interact with the figure under the tree.

Moonlight (月光)
After collecting 7 effects in the Nexus has appear a new door next to the Dream Room's door in the middle of Nexus, enter in it, go north-west, find and interact with the big moon to get effect.

Ending
After collecting all effects wake up and to trigger ending, interact with the book on the table in the middle of the room.