What happened when One Piece Luffy left Mermaid Island. Specific.

I can't remember clearly. I can only say one thing: Shortly after they left Mermaid Island, they met the "whales" and later received a call for help from a phone bug, so Luffy, Sauron, Robin and Wu boarded the burning island (the person who asked for help was on this island). Later, they met a fire-breathing dragon (of course, this dragon was defeated by them) and they met a talking person. The others who stayed on the boat were taken away, and they met a talking head and some huge children (the arrested people began to escape); Smoka and others also landed on this island, and they met Luo, who has become the seven seas. At this time, a group of escapees also met Luo and Smoka. Luffy, they were attacked; A group of people in Smoka fought (causing Smoka (whose heart was taken away) to switch with Tashigi, and some people in the straw hat group also switched); At this time, the enemy (Caesar) had noticed that Luffy had beaten them away; Luffy, some reunited, some separated, and those huge children became violent because they ate sugar (not ordinary sugar) (later cured in Qiao Ba); Luffy and Luo meet again and form an alliance (playing one of the Four Emperors, Cardo), but the current goal is to catch M (Caesar) and Kidd, and Apu and Hawkins also form an alliance, aiming at the Four Emperors; Luffy and Caesar lost the first battle and were caught (later escaped); The straw hat group returned to normal; The straw hat gang, Luo and Smoka invaded Caesar Institute. After a while, atrix attacked the enemy and tried to catch Caesar but was stopped (Monet). Later, almost all of them were killed on the island (Monet wanted to press the switch of poison gas and die with everyone. Later, because Monet was killed, they all escaped, but also because of this, Doflamenco was on his way to Punk Hazard); The new enemy landed on the island, but was defeated by Francci, Nami and Wu. At present, everyone is eating on the boat, and Luffy is preparing to leave the island. The above is the current updated comic content. Please read the cartoon in detail (starting from sentence 654), or wait for the animation update. You can consider watching cartoons on the following websites: /comic/55/

PS: I typed all these myself. They may not be too detailed, but I hope they can be adopted.