If He Becomes Immortal, Then I Will Also Cut Him Off with a Knife.

Why do other people's immortality really mean eternal youth and eternal youth, while my immortality means normal aging? This is very confusing. A suona song is so melodious, the trumpet blasts and you are taken straight home, and you are beaten and killed at every turn. Sorry, this is not suitable for me. I'll just cut him off with a knife, gently, and it won't hurt. What, can't I kill him? Sorry to bother you, bye.