Redan

Redan (뢰단, Rwedan, Rwehdahn) is a compressed baang of Shinsoo, the current of which, after swallowing it, reacts with the current in one's own body, generating explosive power. The technique can only be used by a few selected families.

This is a technique increases the power of a Regular; in Ran's case it's a baang with electrical properties that makes electric currents flow through his body, thus increasing his strength and speed.

This technique is extremely hard to control; even Ran can only control it for 5 minutes.

The Redan causes marks called "SooHeun (수흔, Soo'heun)" to appear on the user's body (in Ran's case, on his cheek), which differ depending on the amount and type of Shinsoo.

Redan