Endgame Study #11: Underpromote Into a "Drawn" Endgame

Welcome back everyone to today's endgame study of the day! Today's puzzle features a nice tactic, followed by a highly theoretical endgame which may be hard to figure out. I have added extensive analysis of this puzzle, but feel free to comment if you would like some clarification on certain variations or moves! I hope you enjoy it!

Scroll down for hint

Hint: Look at the title of this blog post! Look! Do it!

Scroll down for hint #2
 

 Hint #2: Trap the black king in a corner, then use your other knight to mate him before he queens.