As expected, just like the Kimchi player thought.

This is a hidden quest. There's an old saying in the Celestial Empire: "When heaven is about to bestow a great responsibility on a person, it must first distress their mind and exert their muscles..."

Don't be fooled by how unreliable this potato-planting task seems now. Planting potatoes now will definitely lead to other tasks in the future.

Like commanding an army of monsters or something. By then, wouldn't he be able to summon the wind and rain at will?