Memories, Spiral, Moonlight (記憶, 螺旋, 月光) is the 8th episode of the anime adaptation.
Back outdoors, the girls discover a strange place featuring tall black slabs filled with drawers. Yuuri finds a mysterious device and other seemingly meaningless objects inside them. Chito deduces that the drawers are graves containing the belongings of those who have died so they would be remembered.
Afterwards, the girls ascend a spiralling path up another tower in their Kettenkrad. They are forced to take an outside path which dangerously collapses behind them, but they manage to reach the summit. Exploring the top of the tower, the girls find some bottles of beer and spend the night getting drunk under the moonlight.