Kingdom of Rose

Kingdom of Rose is the first and largest location of the Second Sea, covering Levels 700 to 875. The wiki notes that it is far more dangerous than any First Sea island because enemy attacks hit harder and Bounty hunting is more common. Its enemies are Raiders, Mercenaries, Swan Pirates and Factory Staffs, plus the bosses Diamond and Jeremy and the Core raid boss. The Area 1 Quest Giver asks for 8 Raiders at Lv. 700, 8 Mercenaries at Lv. 725 and Diamond at Lv. 750, while the Area 2 Quest Giver asks for 8 Swan Pirates at Lv. 775, 8 Factory Staffs at Lv. 800 and Jeremy at Lv. 850. The island has a long NPC list, including the Blacksmith, Awakenings Expert, Bounty/Honor Expert, Titles Specialist, Blox Fruit Dealer, Blox Fruit Gacha, Aura Editor and both recruiters, and the Legendary Sword Dealer sometimes spawns. Subareas include the Bridge, Cafe, Colosseum, Mansion, Factory and Swan's Room. There are 28 chests in total: 15 Silver, 10 Gold and 3 Diamond. A secret passage under the black rock near the Raiders runs beneath the whole island, full of chests and water, and exits on the right side of the Bridge.