After Being Struck by Lightning, He Was Targeted by the Yandere Empress

[Fantasy cultivation + rebirth + yandere + double heroines + empress + master + invincibility] Wang Fan was reborn from the earth to the world of cultivating immortals, and was picked up by the fairy master and brought back to the sect. However, how did the originally lively and lovely senior sister turn into a sickly empress, how did the originally cold and self-controlled master turn into a rebellious disciple, and how did I become the so-called immortal emperor? What happened to all of this?