Yuiga treats the three to tea brewed from the Collection item "The Teapot That Requires no Leaves" that was originally in the test ruin's treasure chest. After playing one of Nanana's games, she gives Juugo a hint to locating an item from her Collection and the Adventure Club discovers that the treasure resides in the shopping complex called Rising Building. Tensai is able to see past the mirror and forced perspective tricks to locate the exact room of the trial. Yuiga, Juugo, and Tensai are the three tasked with retrieving the item. Upon entering the room, machinery whirs and creates a maze of tubes...