1. Exploring the interior of the sunken ship - When entering the Seiromaru sunken ship for the first time, you need to carefully search every corner of the ship's cabin, especially those floor traps hidden in the dark.
2. Trigger the mechanism - After discovering the mechanism, step on or operate it according to the instructions, and the reaction of the mechanism will guide you to continue moving forward.
3. Clues to the damaged location - In the damaged location of the shipwreck, you will see a hidden treasure chest, which is the key to the next step.
4. Harvest from the treasure chest - Open the treasure chest and be surprised to find a complete key , which is exactly what is needed to open the iron door.
5. Use the key of the iron door - take this key, return to the iron door, insert it into the keyhole, and turn it gently, the heavy iron door will slowly open, revealing a new adventure area.
Through the above steps, even new players can easily solve the puzzle of the iron gate under the sunken ship of Qing Lai Maru. I wish you a smooth exploration in the world of Genshin Impact!