Bone Dragon: Invincible at the Beginning but No One Told Me

[Western Fantasy + Dragon + Bone Dragon + Lao Yin B + Upgrade + Invincibility + Decisive Killing + Villain + Black Humor] Fang Yu woke up leisurely and found that he was in a completely unfamiliar place... What do you mean my body is invincible right after rebirth but no one told me? What do you mean I can't die at all? So what were those days when I was living an ignoble existence? !