You have a tree and another tree. You basically have yourself a forest!
So, now you have this forest and you want to cut it down (so much money!). But, you don't have any tools, only your hands. You think... I've done karate for a while, so I can probably chop it down that way. You get in a chopping stance, then do your battle cry and hit: "HAYA ... .SHI******!"
Currently there are no similar looking kanji which exist in the WaniKani learning system