Junhyuk’s relentless journey to completely rewrite a past filled with regrets begins. After finally obtaining the Stone of Regression with great difficulty, Junhyuk carefully prepares to return to the past. However, an urgent crisis strikes, forcing him to initiate the regression with only the preparations he has managed so far.

“Haha, then let’s meet in the past.” Leaving behind those who sought his life, Junhyuk regresses to the past. “This is the start of something new.” Armed with heightened senses and the ability to copy, Junhyuk embarks on a daring mission to fix a past riddled with regrets.