Folklore Regarding a Giant that Dwells in the Sea

If you're crossing the seas, it's natural to fear the storms and large waves. But if there is something else that is feared, it is important to uncover it no matter what.
Recently, I heard from a merchant travelinq to the Orient about a strange thing on the seas, but will you help me investigate?

Type	Folklores
Difficulty	⭐⭐⭐⭐⭐⭐⭐
Required Skill	Biology 9
How to get Quest	Order a drink at Tavern in Edo, Nagasaki or Sakai
Source	Sagres Henrique
Gold Reward	398,000 Đ
Gold Advance	30,000 Đ

Details

1-2. Sagres

Henrique

3-4. Lisbon

Scholar

5. Hangzhou

Scholar

6. Nagasaki

Seafarer

7-8. Sakai

Resident

Eastern East Asia

Gil - 6433,3386

Discovery

Umibozu

Note

• You need to have the port permits required to access each location above.
• If you are unsure of the location of the next NPC in town, order a drink in a Tavern in the same town.
• Folklores quest only: The required skills are only used to make the quest appear, not required to get the discovery.