npcs that gives you storage in exchange for something

[GOD amon]

Hello OTLand friend, I would like to know if there is a possibility that they will provide me with a npcs that gives a storage in exchange for an action ... example that this npcs gives a container to the player to fill it with water and water some roses or a tree and after doing that go to the npsc again and it will give you its storage and tell you some things

I would greatly appreciate the help and sorry for the inconvenience​