Am I Half a Zombie?

[Doomsday Zombies + No System + Protagonist Zombies + Not the Virgin] [Standing in the human camp, zombies kill zombies and have special functions. The protagonist zombie has a special physique and has a zombie field, making him invincible in the field. My name is Lin Yuzhen. The apocalypse broke out and I became a conscious zombie. Originally I wanted to escape, but my friends and family were still in danger. Now that I had the strength, I needed to save them, and I began to grow stronger. But I was eventually discovered by a Kangmo organization that develops zombies. They knew that I was still conscious after becoming a zombie, and they thought I was a danger, so they started sending people to arrest me. While I was escaping from arrest, I was trying to find a way to upgrade myself so that they could not think wrongly about me. So I was escaping their pursuit while upgrading myself to prepare to kill them. C-level zombies, B-level zombies, A-level zombies and S-level zombies. Then I must be S-level The corpse realm unfolds! Die to me!