: Use a silver marker or silver paper scraps to add the circular emblem at the top of the blade near the guard.
For a visual step-by-step, many creators on YouTube offer printable templates to make the process more precise. Watch Sword Art Online 12
Since you asked to "create a paper," here is a structured guide for making Kirito’s iconic black sword using cardstock or heavy paper. Materials Needed Black and silver (or grey) cardstock Paper glue or hot glue A ruler and X-Acto knife/scissors A wooden dowel (for internal support) Instructions : Use a silver marker or silver paper
If you are looking for "12," it usually refers to one of three things: Materials Needed Black and silver (or grey) cardstock
: If you're looking for the source material, this volume covers the middle of the Alicization arc. Part 2: DIY Paper Prop — "The Elucidator"