Hi imReana!
First of all, you should get a Remote Control. This will help you train: no need to manually click skills or monsters. You can just auto attack, auto move, and auto heal if you have food.
If you don't know how to get a remote control, just follow this steps:
1. Go to Welling Village
2. After you get there, do this quest:
Auntie's Special Soup Ingredients
Target: Aunt near the Weaponry of Welling Village
Condition: None
Process: An aunt cooking soup finds out her ingredients have been used up. She asks you to take the potatos from the Fruit Grower at once.
Note: The Fruit Grower is just in the village. You can find him near the entrance.
Reward: Remote Control*1
Then you can follow Lord Death's suggestions. You can train in kelan cave and you can leave your chars AFK if you have the remote control.
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My chars on Leo:
\(>∀<)/
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