101Leafy researched the games.
Twin Kut-Ku

Known for the bladed ear of Yian Kut-Ku, these are sure to gain adoration.
| Class | Dual Blades |
|---|---|
| Rarity | 2 |
| Attack | 154 |
| Fire | 100 |
| Slots | 1 |
| Table price | 1,720z |
Upgrades
| Upgraded from | Chief Scythe |
|---|---|
| Upgrades into | Twin Kut-Ku+, Raven Tessen, Pink Maracas |
Can also be made new at the smithy.
Upgrade tree from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 710.
Materials
Kut-Ku Ear ×2, Unknown Skull ×2, Brute Bone ×6, Giant Beak ×1