The introduction of the new drug 'Shin-Frost' introduces a major innovation that can delay human aging by more than 10 years. The protagonist tries to protect his younger brother from forces demanding experimental samples of the new drug and genetic sequencing codes. His younger brother is kidnapped, and the protagonist tries to stop it, but the enemies plan to eliminate him. A new revenge drama begins as forces similar to those in the past reappear. The protagonist vows revenge, saying, "We will repay the new grudge, the old grudge together," and takes action.