나만 빼고 다 회귀했다

Lee Hwayoon, one of the few players who entered the final dungeon, finds himself among the players who regressed back to the past with their memories intact. [System Error!] [Searching for Special Skill...] [Special Skill search completed.] [Please check the status window.] [(Butterfly Effect Lv. 1) To the only one who did not regress, bonus points will be awarded for actions of yours that change the future.] (Source: Webnovel)