Play the LORDS OF SHADOW on PC/XBOX/PS3 and then play this!
This is a direct sequel to the first game of Castlevania Lords of Shadow series. So it will be more clear if you play the first game first. Although you can straight jump into this on 3ds because you won't miss much (enemies and dracula..see and kill..why need reasons eh?) but still I recommend to try out the first game on PC or PS3 or xbox and then jump to this. Great visuals for a 3DS game!