Rest
The leader is next to the tree. What is he doing? He's leaning against it, resting.
The best thing to do with a tree is rest under it. Picture the leader resting under the tree with his eyes half closed.
きゅう
やす
None
As he rests, he suddenly gets hungry and pulls a cucumber (きゅう) off the tree and bites into it. A good rest isn't complete without some crunchy tree cucumbers.
Don't email me saying cucumbers don't grow on trees. Cucumber trees exist. Look them up and then rest easy knowing I'd never lie to you.