For the sake of world peace, the explorer challenges dungeons. At every turn, the dungeon master stands in his way. The two clash time and time again, and the years gradually pass. The explorer’s adventures continue as always, and he has grown tall, now a young man. The dungeon master who opposes him has also changed—her growth is unmistakable. From the gaps in her clothing, her full bosom boldly asserts its presence, leaving no room to ignore it.