you are a monk that has spent their years of training learning how to use rope or chain based weapons. such as whips, rope/chain spears and anything in that area of weaponry.

hands of the chain

At 3rd level you monk can wrap their hands in their chains/rope, using them to channel their kid through and enhance their strikes. Adding your weapons damage onto an unarmed strike for that turn in return for a ki point. 

At 6th level you may add this bonus to your flurry of blows.

binding chains

At 6rd level you are able to take the grapple action from longer distances than others. You can grapple any enemy within your weapons range + your unarmored movement. Enemies who are grappled gain disadvantage to attacks and allies attacking the enemy gain advantage.

swinging chains

At 11th level you gain the ability to pull yourself to high up locations equal to the range of your weapon + unarmored movement. You may also swing around a location by grappling onto high up locations and swinging between them. This gives you the ability to move an extra unarmored movement when swinging. However it takes an action to use in combat.

resonate chains

At 17th level when an enemy is grappled from a distance of 10ft or higher you have the ability to channel your ki through your chain/rope to attack doing 1d10 + 1d6 per ki point spent on the attack.