Eternally Regressing Knight (Korean: 오늘만 사는 기사) is a standout dark fantasy epic that breathes new life into the "Time Loop" genre. Written by Seoneung and brought to life by the atmospheric art of D-No, the series is praised for its "strategic despair." It moves away from traditional power fantasies to focus on the grit and psychological resilience required to fight a war that has already been lost thousands of times. It is a haunting exploration of a hero who isn't defined by his strength, but by his refusal to stay dead.

The narrative follows Erihard, a knight who witnesses the total annihilation of his kingdom at the hands of the "Abyss." Upon his death, he is pulled back in time, beginning an endless cycle of regression. To change a predetermined future, Erihard must treat his own life as a resource, dying repeatedly to map out enemy movements, solve impossible political puzzles, and master the blade through centuries of trial and error. He is a weary traveler in time, carrying the memories of countless fallen friends as he attempts to forge a single timeline where humanity survives.

Alternative Names and Titles
Eternally Regressing Knight / 오늘만 사는 기사 / A Knight Who Eternally Regresses / Der Ritter lebt nur heute / The Knight Who Only Lives Today / Le chevalier qui ne vit qu'aujourd'hui / O cavaleiro em eterna regresión / Caballero en eterna regresión / อัศวินวันเดียว / 死に戻り騎士は今日も生きる / 只活今天的轮回骑士 / 今日騎士 / Powracający Rycerz / Oneulman Saneun Gisa