Under the canopy, you use a tree for your floor. It also becomes your bed, because hey, what is a floor but the original bed?
News of your amazing floor / bed spreads and reaches the Shougun (しょう), who wants to come see it. He's impressed, and asks you to build floor beds out of trees laying under this canopy in all of his buildings.
Currently there are no similar looking kanji which exist in the WaniKani learning system