This quest is in the Elona+ mod of Elona. The english name is a translation error, but since it appears like this in the journal, it is included for "accuracy".
From:The <Fugitive Kunoichi> who is in the extreme lower right part of Port Kurualm in South Tyris. To start the quest, you must have 80,000 fame.
Reward: None, but unique items can be picked up during the course of the quest.
Other items of interest: The <Black monkshood> dropped by the <Ninja Master> during the quest, and a kotatsu, daruma and a random kitty bank which may be pickpocketed. In addition, the <Fugitive Kunoichi> kills herself after to complete the quest, and leaves behind the <Gerbera Cross> and a random speed ring.
Task: Clear out a map filled with Ninja, Red Ninja, and the <Ninja Master>.
To start the quest, you need to have 80,000 fame. If you don't meet the fame requirement, the <Fugitive Kunoichi> will still be there, but will not offer to begin the quest. If you have enough fame, she will offer to start the quest, using Loyter's Nightmare quest text. Selecting to begin the quest won't immediately warp you to the Ninja House, you have to talk to her again. Once you accept the warp, you can return to Port Kurualm through the stairs near the bottom of the map if needed, and can warp back again by talking to the kunoichi. The first warp will start you near the stairs, but warps afterwards may send you to another part of the map. The map itself has some items in it, but they need to be pickpocketed if you want to pick them up. There's nothing that important here. The enemies can be a serious problem because of the splitting, and the <Ninja Master> can do serious damage with his <Black Monkshood>. Every ninja must be killed to complete the quest, it doesn't end after killing the boss. This includes all ninja copies that split off. Fortunately, the <Ninja Master> does not split. After clearing the map, your journal will be updated, and you receive the message "you hand him a capsule drag", from the recruitment of the <Kaneda Bike> sequence. Using the stairs at the bottom of the map will warp you back to the <Fugitive Kunoichi>. After speaking to her, she will kill herself, followed by the text "This is the ninja's rule", completing the quest. Along with the aforementioned treasures, she will also leave behind her card and statue.