Little Sister is a Burly 5.13b in Squamish
It's one of several awesome 5.13s at The Monastery

Little Sister is another popular 5.13 at The Monastery near Cheakamus Canyon. It’s only 15 metres and has six bolts, but the movement is really engaging and most who climb it give it a few stars.
Michael Woo sent Little Sister last fall, noting, “Finally put it down after many attempts. Got it first try when temps finally cooled below 20C but all those sessions in the heat definitely set the stage for today.” Watch him send below.
Here are the best 5.13 sport routes at The Monestary:Â The Lorax 5.13a, Little Sister 5.13b, Big Brother 5.13b, Separation Anxiety 5.13c, Monkey Business 5.13a, Have Your Babies And Leave Extension 5.13b, Pain Box 5.13a, The Heretic 5.13d and Linkup Junkies 5.13a.