If you ever want to know how the design process works then this video is for you.
K/DA was such a revolutionary idea it is utterly fascinating to see how the team from Riot Games came up with it. Not only that but seeing the break down of the character designs, the deconstruction of the music and the developers little anecdotes is all very enlightening. It is shocking at how much time and work went into this short three minute song.
Even if you where not a fan of the original song you will still find its creation fascinating, plus the drawings are super cute.