The Abyss Descends: Emotion Cultivation System

Genius youth Lin Yuan is expelled from his sect for refusing to hand over his family's legacy. Just then, the Demonic Abyss descends, spiritual energy runs amok, and the world falls into apocalypse.

He awakens the Emotion Cultivation System, which lets him convert other people's anger, fear, hope, and other emotions into cultivation resources.

He opens a small shop in a settlement for survivors, trading emotion currency for pills and cultivation techniques. He helps the weak rise up while playing the pig to eat the tiger and building his own strength.

In the survival instances of the Demonic Abyss secret realm, which opens every three months, he crushes his opponents with his genius talent and emotion-exchange ability, clearing one challenge after another to obtain the key fragments needed to seal the abyss.

His humble stall grows into the Emotion Emporium, a commercial landmark spanning the continent. In the end, Lin Yuan gathers enough emotional energy and joins forces with various factions to seal the Demonic Abyss, protecting humanity's last hope.