A Regret-Free Dream of the Red Chamber

The protagonist is invincible and has a System. His speed is 9,999 trillion Mach, his reactions match his speed, he is not made of flesh and blood, he is immortal, and his strength is 9,999 trillion Mach.

Many parts of this book don't match the original. It's fanfiction, so just enjoy it for fun; there's no need to scrutinize the logic.

The timeline doesn't match the original, either.

The protagonist is fairly serious, hates evil, and is a kind person. His flaw is that he is ruthless with bad people and can be sharp-tongued at times.

Mind your words. If you don't like it, don't flame me.