Master's Death, Mistress's Grief

Ye Xingchen travels to a fantasy world and awakens the Master's Benevolence and Disciple's Filial Piety system, tasked with fulfilling his late master Han Tianfeng's final wishes. Unexpectedly, his mistress is poisoned by a strange toxin and harbors deep resentment. Despite constant hardships, his cultivation rapidly ascends to the Nascent Soul realm and eventually breaks through to become an Immortal Emperor. Just as the Demon Lord breaks his seal and intends to slaughter the city, the mistress fights to the death, critically injured. Ye Xingchen arrives in time, slays the Demon Lord with a single palm, and saves all living beings.