Beatrix, a girl with priceless immortality, had embarked on a long and arduous journey driven by a thirst for revenge. After years of wandering, she finally arrived in a small town, hoping to find a clue from her old friend Sherly, who might know something. However, there, fate led her to meet a mysterious man with pitch-black hair, his face hidden in shadows. In a low yet meaningful voice, he said, "I am searching for the meaning of this fleeting, mortal life." A simple sentence that marked the beginning of a quest for the meaning of life.