Murasame

Source: npc/quests/ninja_quests.txt

1. Talk to Craftsman Kaibara at que_ng,72,34 (Ninja only).
2. Choose Murasame in his sword menu.
3. Confirm crafting with Yes! I want one!.
4. Materials: 30 Steel, 10 Aquamarines, 48,000 zeny.
5. After hand-in, reward line is getitem 13012,1.