Riful entered the entrance of the "cave" as she wanted to call it, Riful was kind of unsure about taking the mission, as it could be dangerous, since the tunnels were ancient, prone to collapsing, cave-ins, and dead-ends. Riful decided to take a leap of faith and move on. Riful got out her little empty map, and decided to sketch the entrance of the tunnel. Riful looked ahead, and saw that the tunnel split into 2 different tunnels. Riful made sure to sketch the split, and decided to go to the left tunnel. Riful saw a few buildings that were in disuse, and should be destroyed, Riful decided to draw the buildings onto her map, but with a small X on the left corner of the building on the map to indicate that it should be destroyed. Riful wondered if she should destroy the relatively small buildings herself, since she was already here. Riful stuck a piece of paper on the very old and broken-down buildings, and made the paper explode, effectively destroying the buildings. Riful made a change on her map to make a big X over the now destroyed buildings.

Riful saw that the small path stretched on so much longer, and Riful reluctantly decided to follow the path, marking nearby buildings and the paths that branched out from the main path. Riful thought that this mission would be more dangerous and exciting, but like other D-Rank missions, she had to be reckless herself to make the mission dangerous and exciting for her. Riful stopped walking for a minute, and started thinking of ways to make the mission more fun for her. Riful realized that she could also save time and make the mission more entertaining for her, a perfect combination. Riful observed the path that seemed to continue on forever, she measured the height of the path, and Riful decided to cave-in the path, so that she could be delightfully destructive and decrease the amount of work she had to do. Riful entered into the "Dance of the Yasunori", and made a large mallet made of paper, and started hitting a spot on the ceiling of the cave. Riful struck relentlessly, but it seemed to have little effect on the age old earth that made the ceiling. Riful stopped hitting the ceiling, and decided to use a slightly more conventional tactic in her plans of useful and time-saving destruction. Riful covered the ceiling with paper, and started to prepare it for explosion. Riful prepared the explosion for approximately 20 minutes before she finished. Riful flew back a bit, far from the location of the imminent explosion. Riful made a hand-sign and the ceiling of the cave started to explode, causing a small earthquake in the cave. Riful realized that she could be hit by debris and started flying back very fast. Riful stopped after she noticed that the quake had stopped, and she turned around, observing the damage that she caused. Riful noticed that the path had caved in, blocking the entrance, and Riful marked that this part of the path was a dead-end in contempt. Riful sighed, as she still had to do the same thing with the other path. Riful walked back to the entrance, and became more lazy this time around, blocking the entrance of the path that she had not blocked. Riful accomplished this with a much more conventional tactic, by making it seem like a dead end with paper, colouring it so that it looks like the path ends there. Riful smirked as she noted that on the map, and she left shortly after.