Haedonggum

Source: npc/quests/quests_gonryun.txt

1. Complete the long Say Yum Moon chain in Gonryun (b_sword route).
2. Follow the village/cave investigation stages and later Geffen/Yuno dialogues.
3. At the weapon-completion stage, you receive the sword.
4. Reward check: getitem 1123,1 (Haedonggum).