The Most Ordinary Senior Sister

Lin Xuanzhen spent three thousand years without forming a Golden Core.

She decided to try a new approach and practice with her junior brothers and sisters to get a feel for it.

They had barely exchanged a couple of moves when her junior brother broke through;

They sparred a little more, and her junior sister reached enlightenment;

Someone tried to kill her and ascended on the spot;

Her junior brothers, sisters, friends, and enemies all said, "Our eldest senior sister really is incredible!"

Lin Xuanzhen smiled on the outside and cried on the inside. All she wanted was to form a Golden Core!

One-sentence summary: The eldest senior sister only wants to form a Golden Core.

The female lead is nonhuman, has no romantic pairing, fiercely protects her own, and is invincible.