My Daily Rules for Longevity

Losing emotions and becoming an immortal who has lived through thousands of years, a "living dead" who will live forever. In order to hide his identity, he acted as an ordinary student in high school ——Until the transfer student pushed open the classroom door. Smiling eyes patted him on the shoulder: "Classmate, the death energy on your body is heavier than the morgue, isn't it?" When the millennium mystery emerges, the crisis comes She protected him behind her with her backhand, "Don't be afraid! I'll protect you!" He looked into her burning eyes, Silently put away the restless spiritual energy in his sleeves: "…Who is protecting whom?"